Dr P.T Perumal Publications

Publications

P.T. Perumal and M.V. Bhatt, “Oxidation of aromatic substrates by hydrogen peroxide - hydrochloric acid”, Tetrahedron Lett., ,1979, 3099.
P.T. Perumal and M.V. Bhatt, “A new method for the conversion of halophenols and halonaphthols to quinones”, Synthesis, 1979, 205.
P.T. Perumal and M.V. Bhatt, “Oxidation of halophenols and sterically hindered phenols by lead tetraacetate” , Synthesis, 1980, 943 .
P. T. Perumal and M.V. Bhat, “A facile conversion of benzylic hydrocarbons to aldehydes and ketones,” Indian J.Chem., 1981, 20B, 153.
M.V. Bhatt and P.T. Perumal, “ A convenient conversion of electron rich benzylic hydrocarbons to carbonyl compounds by peroxydisulphate,” Tetrahedron Lett., 1981, 2605.
P.T. Perumal and M.V. Bhatt, “Oxidation of aromatic substrates by peroxydisulphate in the presence of metal ions,” Proceedings of the catsympo-80, India, 1983,149.
H. C. Brown, M. Periasamy, P. T. Perumal, D. P. Kelly and J.J. Gainessiracussa, “Structural effects in the solvolytic reactions 45. Carbon - 13 NMR studies of carbocations 9. Variation of the cationic carbon chemical shifts with the electron demand in 1,1’-diaryl -1-ethyl cations. Importance of the inductive -polarization effect in causing deviations from the linearity”,J. Am. Chem. Soc., 1983, 105, 6300.
H.C. Brown, M. Periasamy, P.T. Perumal, D.P. Kelly, “Structural effects in solvolytic reactions 46. Carbon -13 NMR studies of carbocations 10. Ananomolous carbon -13 NMR shifts in a supposedly classical 2-aryl-3- methylene-2-norbornyl systems. Further evidence for the importance of the localized inductive -polarization in causing shielded chemical shifts in carbocations”.J. Am. Chem.Soc., 1984, 106, 2359 .
H.C. Brown, P.K. Jadhav and P.T. Perumal, “Asymmetric methallyl boration of prochiral aldehydes with methallydiisopinocampheyl boranes”, Tetrahedron Lett., 1984, 25, 5111.
H.C. Brown, M. Periasamy, P.T. Perumal, “Structural effects in solvolytic reactions” 47. The order of stabilizing abilities of carbocations by carbon -13 NMR chemical shifts of the cationic center in the para alkyl tert. cumyl cations”:, J.Org.Chem. 1985, 50, 4566.
D.P. Kelly, M. Periasamy and P.T. Perumal, “Carbon -13 NMR studies of carbocations 12. Effect of increasing electron demand on the carbon-13 NMR chemical shifts of 1-aryl-1-cycloalkyl-1-ethyl and 1-aryl-2-methyl-1-cycloalkyl cations”,J.Org.Chem. 1985, 50, 4566.
M.V. Bhatt, K. Venkatesan, P.T. Perumal, T.S. Cameron and B. Gillard, “Oxidation of 2,2’-dihydroxyl, 1,1’-binaphthyl by periodic acid, the structure of the product”,J. Org.Chem., 1985, 50, 2799 .
H.C. Brown, T. Imai, P.T. Perumal and B. Singaram, “Organoboranes 41. Reactions of organoboranes with dichloromethyl lithium : Scope and limitations. Synthesis of homologated primary and secondary alochols.” J.Org.Chem., 1985, 50, 4032 .
P.K. Jadhav, K.S. Bhat, P.T. Perumal and H.C. Brown, “Chiral synthesis via organoboranes 6. Asymmetric allylboration via chiral allyldialkylboranes. Synthesis of homallylic alcohols with exceptionally high enantiomeric excess”, J. Org.Chem., 1986, 51, 432.
H. C. Brown, K.S. Bhat, M. Zaidlewicz, S.A. Weissman, P.K. Jadhav and P.T. Perumal, “Comparison of monoisopinocampheyl borane and its 2-ethyl anologue for the chiral hydroboration of the representative alkeness”, J. Org. Chem., 1988 , 53, 5513.
A. Duraikannu, G. Ramamurthy, G. Thyagarajan, K. Vijayalakshmi, C.K. Rao, P.T.Perumal and K.S. Jayaraman, “Anilolubricant in leather processing”, Leather Science, 1988, 33, 172.
P.T. Perumal and M.V. Bhatt, “Quinone studies, part III. Metal ion catalysed oxidation of halophenols and halonaphthols by peroxydisulphate,” Proc. Ind. Acad. Sci., 1989, 101, 25 .
H. C. Brown, S. Weissman, P.T. Perumal and U.P. Dhokte, “Hydroboration 87. Synthesis and hydroboration of (-)-2-phenyl apopinene. Comparision of mono (2-phenylapopinocampheyl) borane with its 2-methyl and 2-ethyl analogs for the chiral hydroboration of representative alkeness”, J. Org.Chem., 1990, 54, 1217.
P. T. Perumal. “Oxidation of alkenes with peroxydisulphate in the presence of copper (II)”, Synthetic commun., 1990, 20, 1353.
P.Rajalingam, G. Radhakrishnan., P.T.Perumal and N. Latha and “Synthesis and Characterisation containing polyurethanes”, J. Polym. Mat., 1990, 7, 249.
B. Balasundaram and P.T. Perumal, “A new method for the synthesis of substituted 3,5-diphenylisoxaazoles”, Synthetic commun., 1990, 20, 3161.
M. Venugopal and P.T. Perumal, “A convenient synthesis of substituted chloroindenes by Vilsmeier reaction”, Synthetic commun., 1991, 21, 515.
K.S. Rein, Z.Chan, P.T. Perumal. L. Echegogen and R.E. Gawley, “Single electron transfer in the addition of chiral dipole stabilised organolithium to carbonyls. Stereochemistry of a chiral nucleophile as a mechanistic probe”, Tetrahedron Lett., 1991, 32, 1941.
M. Venugopal, R.Umarani, P.T. Perumal, “A new method for the preparation of substituted tetrahydro-4H-1-benzopyran and 4H-pyrans by Vilsmeier reagent”, Tetrahedron Lett., 1991, 32, 3235.
M. Venugopal and P.T. Perumal, “Synthesis of 5-(2- or 5-Substituted aryladehydes)-3-chloropentadienealdienealdehydes by Vilsmeier reactions” Org. Prep.Proce.Int.Inc., 1991, 23, 749.
R.J. Bergeron, J. Weigand, J.S. Macmanis and P.T. Perumal, “Synthesis and biological evaluation of hydroxyamates based ion chelators”,J.Med.Chem., 1991, 34, 3182.
R. J. Bergeron, J.S. Macmanis, P.T. Perumal and S. Algee, “The total synthesis of alcalign”, J. Org.Chem., 1991, 56, 5560.
M. Venugopal and P.T. Perumal, “Synthesis of substituted isoxazoline by Vilsmeier-Haack reagent,” Proc. Ind. Acad. Science, 1993, 105, 19.
29. B. Balasundaram and P.T. Perumal, “Synthesis of 2,4,6-triaryl-2H-1,3-oxazines by Vilsmeier reagent,” Indian J. Chem, 1993, 32B, 1061.
B. Balasundaram, M. Venugopal and P.T. Perumal, “Synthetic studies on N-acetyl derivatives of amino acids and thiolactones using Vilsmeier-Haack reagent”, Tetrahedron Lett., 1993, 34, 4249.
M. Venugopal, B. Balasundaram and P.T. Perumal, “Synthesis of furan derivatives by Vilsmeier reagent”, Synthetic Communications, 1993, 23, 2593.
P.T. Perumal and M.V. Bhatt , “ Oxidation of substituted benzylic hydrocarbons and naphthalene by peroxydisulphate”. Proce. Ind. Acad. Sci., 1995, 107, 567.
R.R. Amaresh and P.T. Perumal “Ring opening of chalcone epoxides with Vilsmeier reagent”, Tetrahedron Lett., 1995, 36, 7287.
B. Balasundaram, T.P. Veluswamy, D. Velmurugan and P.T. Perumal, “A new method for the synthesis of nitrones and their conversion to 3,5-diarylisoxazolines”, Indian J. Chem., 1995, 34B, 367.
V.J. Majo, A.M. Prince, M. Venugopal and P.T. Perumal, “A new route to synthesis of N-formyl derivatives of substituted benzazepin-1-ones and 1-4-benzoxazepin-5-ones using Vilsmeier reagent”, Synthetic Commun., 1995, 25, 3863.
P.T. Perumal, M. Venugopal and T.P. Venuswamy, “Synthesis of spirocyclic diketone related to Fredericamycin A,” Indian J.Chem., 1996, 35B, 242.
V.J. Majo and P.T. Perumal, “Dimerization of substituted 2-Aminobenzoic and under vilsmeier conditions. A novel route to the synthesis of 4-(34)-Quinazolinones” Tetrahedron letters., 1996, 37, 5015.
V.J. Majo and P.T. Perumal,”one pot synthesis of Heterocyclic -chlorovinylaldehydes using Vilsmeier Reagent” J.Org.Chem., 1996, 61, 6523.
R.R. Amaresh and P.T. Perumal A new route to the synthesis of 4-chloro-3-methylquinolines from 1-(2-aminophenyl)-propanones using Vilsmeier reagent.” Synthetic commun., 1997, 27, 337.
G. Babu and P.T. Perumal “Imino Diels-Alder reactions catalysed by Indium trichloride (Incl3), Facile synthesis of Quinoline and phenanthridinone derivatives”, Tetrahedron Lett., 1997, 38, 5025.
S. Selvi and P.T. Perumal, “Synthetic utility of Vilsmeier reagents:”Formation of Vinamidinium salts from acyl ureas”, Tetrahedron Lett., 1997, 38, 6263.
V.J. Majo and P.T. Perumal, “The Vilsmeier cyclization of azides. Synthesis of oxazoles and vinyl azides from 2-azidoacetophenones”. Tetrahedron Lett., 1997, 38, 6889.
R.R. Amaresh and P.T. Perumal, “A novel one pot synthesis of 4- chloroquinoline-carboxaldehydes, 4-chloroquinolines and 4-chloro-3-ethylquinolines using Vilsmeier reagent.” Indian J. Chem., 1997, 36B, 541.
G.A. Rajkumar, N. Arunasri, T. Annamalai, M. Swamy and P.T. Perumal, Synthesis and antifungal activity of cypermethric acid derivatives” , J. Soc.Leather Technol. Chem., 1997, 81, 204
45. T. Annamalai, G.A. Rajkumar, N. Arunasri, S. Rajkumar and P.T. Perumal, “Synthesis and fungicidal evaluation of compounds analogous to 1,3-oxazine” J. Soc. Leather Technol.Chem., 1997, 81, 201.
G. Babu and P.T. Perumal, “Convenient synthesis of , -Bis(substituted furfurylidene)cycloalkanones and chalcones under microwave irradiation.” Synthetic comm., 1997, 27, 3677.
R.R. Amaresh and P.T. Perumal, “A novel one pot synthesis of 2-aminoquinoline derivatives from arylazidolcetones by cyclization under Vilsmeier conditions”. Tetrahedron Lett., 1998, 39, 3837.
G. Babu and P.T. Perumal, “Indium trichloride (InCl3) catalysed imino Diels-Alder reactions: An efficient synthesis of cyclopentaquinolines, azabicyclooctanones and azabicyclononanones” Tetrahedron , 1998, 54,1627.
G. Babu and P.T. Perumal, “Convenient synthesis of pyrano (3,2-c) and indeno (2,1-c) quinolines by imino Diels Alder reactions”, Tetrahedron Lett., 1998, 39, 3225.
V.J. Majo and P.T. Perumal, “The intra molecular electrophilic substitution of azides by Iminium species. A convenient and novel method for the construction of nitrogen heterocycles by cyclization under Vilsmeier condition”, J. Org. Chem., 1998, 63, 7136.
R. R. Amaresh and P. T. Perumal, “A novel one pot synthesis of 2- aminoquinolines from arylazidoketones by cyclisation under Vilsmeier conditions.” Tetrahedron., 1998, 54, 14327.
L. Vijayalakshmi, V. Parthasarathi, P. T. Perumal and V. J. Majo. “ 4-(Dimethylaminomethylene)-2-(2-nitrophenyl)-oxazol-5(4H)-one.” Acta Cryst., 1998, C54, 1683.
R.Srinaga, P.Rajalingam and P.T.Perumal, “Liquid Crystal Polyesters : Preparation of Polyesters Containing Bisphenol-A”. Journal of Polymer Materials., 1998, 15, 419.
S.Selvi and P. T. Perumal , “ Synthetic Utility of Vilsmeier Reactions: More Vinamidinium Salts.” Synthetic Commun., 1999, 29, 73.
R.Krishna, D.Velmurugan, G.Babu and P.T.Perumal, “N-H... (indole) intermolecular interactions in 3.3’ benzylidenediindole” Acta Crystallographica., 1999, C 55, 75.
G.Babu and P.T.Perumal, “ A novel synthesis of indolyl and benzo[b]thienyl imines and Diels-Alder reactions promoted by indium trichloride ”, Tetrahedron, 1999, 55, 4793.
P. T. Perumal, V. J. Majo and R. Vijaya Anand , “ The unusual behaviour of substituted 1-aryl-2-(arylamino)ethaonones towards Vilsmeier reagent ”, Indian J. Chem., 1999, 38B, 763.
R. R. Amaresh and P. T. Perumal, “A new and convenient synthesis of 2-imino- 2H-pyrancarboxaldehydes from -ketoamides using Vilsmeier reagent ”, Tetrahedron, 1999, 55, 8083.
J. Jeyakanthan, D. Velmurugan, S.Selvi and P. T. Perumal, “ 3-(2- hydroyphenyl)-1-(2,4-dinitrophenyl)-4- methyl-1H-pyrazole ”, Acta Cryst., 1999, C55, 1926.
S. Shanmuga Sundara Raj, J. Jeyakanthan, S. Selvi, D. Velmurugan, H.-K. Fun and P. T. Perumal, “1-(2,4-Dinitrophenyl)-3-(2-hydroxyphenyl)-1H-pyrazole- 4-carboxaldehde Acta Cryst., 1999, C55, 1667.
P.T. Perumal, R. R. Amaresh, K. Venkataboopathy and S. Rajkumar , “Synthesis and fungicidal evaluation of 2-aminoquinoline derivatives”, J. Soc. Leather Technol.Chem., 1999, 83, 307.
T. Dinakaran and P.T.Perumal, “Microwave induced formation of 3-chloro-5- arylpenta- 2,4-dien-1-als and 3-chloro-(5-formylaryl)penta-2-4-dien-1-als by Vilsmeier reaction”, Ind. J. Chem., 1999, 39B, 135.
G. Babu and P. T. Perumal, “Synthetic applications of indium trichloride catalysed reactions” , Aldrichimica Acta, 2000, 33, 14.
G. Babu, N. Sridhar and P. T. Perumal, “ A convenient method of synthesis of bis-indolylmethanes: Indium trichloride catalysed reactions of indole with aldehydes and Schiff’s bases ”, Synth. Commun., 2000, 30, 1609.
G. Babu, R. Nagarajan, R. Natarajan and P.T.Perumal, “Indium Trichloride- Catalyzed Imino Diels-Alder Reactions: Synthesis of New Indolylquinoline Derivatives”, Synthesis, 2000, 611.
R. R. Amaresh and P.T. Perumal, “A novel route to the synthesis of 3- pyridine carboxaldehydes by vilsmeier reagent” , Synth. Commun., 2000, 30, 2269.
S.Selvi and P.T.Perumal, “Microwave assisted one pot synthesis of substituted 3-formyl benzoates using vilsmeier reagent”, Synth. Commun., 2000, 30 ,3925.
R. Shankaranarayanan, D. Velmurugan, S. Shanmuga Sundara Raj, Hoong- Kun Fun, G. Babu and P. T. Perumal, “4-[1-(Phenylsulfonyl)indol-3-yl]- 3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline” , Acta Cryst., 2000, C56, 475.
S. Selvi and P. T. Perumal, “a facile synthesis of [1]benzopyrano[4,3-c] pyrazole using vilsmeier reagent”, Indian J. Chem., 2000, 39B,163.
P. T. Perumal, R. Amaresh and V. J. Majo, “Oxidation of substituted chalcones with potassium peroxydisulphate-copper (II)”, Oriental J Chem., 2000, 16(3), 537.
R. Nagarajan and P. T. Perumal, “Imino Diels-Alder reactions catalysed by oxalic acid dihyrate: Synthesis of tetrahydroquinoline derivatives”, Synth. Commun., 2001, 31, 1733.
R. Nagarajan, S. Chitra and P. T. Perumal, “Triphenyl phosphonium perchlorate – An efficient catalyst for the imino Diels-Alder reaction of imines with electron rich dienophiles. Synthesis of pyraquinoline, furaquinoline and phenanthridine derivatives” , Tetrahedron, 2001, 57, 3419.
S. Selvi and P.T. Perumal, “ Synthesis of 2- cyano-3-dimethylamino-N-phenyl acrylamides using the Vilsmeier reaction”, Organic Preparation and Procedure International, 2001, 33, 194.
S.Selvi and P.T.Perumal, “Vilsmeier cyclization of 2-amino phenoxyacetic acid”, Synth. Commun., 2001, 31, 2199.
K. Sethusankar, S. Thennarasu, D. Velmurugan, S. Shanmuga Sundara Raj, H.-K. Fun and P. T. Perumal, “ 5-(1-Acetamido-3-methylbutyl)-5-methyl- imidazolidine-2,4-dione monohydrate. Acta Cryst. 2001, E57, o377.
J. Jeyakanthan, D. Velmurugan, S. Selvi, and P. T. Perumal, “1-(2,4-Dinitrophenyl)-3-(2- hydroxy-5-methylphenyl)-pyrazole-4-carboxaldehde, Acta Cryst. 2001, E57, o474.
S. Thennarasu & P.T.Perumal, “Synthesis of new hydantoins as intermediates for diamino acids”, Indian J. Chem., 2001, 40B, 1174-1176.
P.T.Perumal, “Synthesis of heterocyclic compounds using Vilsmeier reagent” Indian J. Heterocyclic Chem., 2001, 11, 1.
R. Nagarajan and P.T. Perumal, “InCl3 and In(OTf)3 catalysed reactions: Synthesis of 3-Acetyl indoles, bis-indolylmethane and indolylquinoline derivatives.”, Tetrahedron, 2002, 58, 1229-1232.
M. Anniyappan, D Muralidharan and P.T. Perumal, “ Synthesis of Hantzsch 1,4-Dihydropyridines under Microwave Irradiation”, Synthetic Commun., 2002, 32, 659-663.
M. Anniappan, D. Muralidharan and P. T. Perumal, microwave assisted deoximation of carbonyl compounds using aqueous hydrochloric acid, Indian J. Chem., 2002, 41B, 2419
R. Nagarajan and P. T. Perumal, “Electrophilic substitution of Indoles catalyzed by triphenyl phosphonium perchlorate: synthesis of 3-Acetyl Indoles and bis- indolylmethane derivatives. Synth. Commun., 2002, 32, 105-109.
M. Anniyappan, R. Nagarajan and P.T. Perumal, “Urea nitrate catalyzed imino Diels-Alder reactions: Synthesis of cyclopentaquinolines, pyranoquinolines and furoquinoline derivatives” Synth. Commun., 2002, 32, 99-103.
S. Selvi and P. T. Perumal, “ Facile synthesis of [1]benzopyrano[4,3-c] pyrazoles, 1-aryl-3-(2-formamidophenyl)pyrazoles and 1-aryl-3-phenyl-4- alkylpyrazoles using vilsmeier reagent”, Indian J. Chem., 2002, 41B, 1887.
M.Balasubramanian, S. Thennarasu, and P.T.Perumal, “Spectrophotometric Determination of Hexamine in Hiprex Using Ninhydrin reagent”, Oriental. J. Chem., 2002, 18, 207.
M. Anniyappan, D. Muralidharan and P.T. Perumal “A novel application of the oxidizing properties of urea nitrate and peroxydisulphte –cobalt (II):Aromatization of NAD(P)H model Hantzsch 1,4-dihydropyridines “ Tetrahedron, 2002, 58 ,5069.
M. Anniyappan, D. Muralidharan, and P. T. Perumal, “ Diasteroselective Synthesis of cis-fused pyrano and fuaranobenzopyrans catalysed by indium trichloide or triphenyl phosphonium perchlorate”, Tetrahedron, 2002, 58, 10301.
S. Thennarasu and P.T. Perumal “An Efficient preparation of 1,2-diamino-1- phenylheptane”, Molecules, 2002, 7, 487.
S.Selvi and P.T.Perumal, “ A Short, Facile Method for the Synthesis of 1-aryl-3- phenyl-4-alkylpyrazoles using Microwave irradiation.” J. Heterocyclic Chemistry, 2002, 39,1129.
R. Sankaranarayanan, M. Yogavel, D. Velmurugan, K. Sekar, G. Babu, P.T. Perumal, S. Shanmuga Sundara Raj, H.-K. Fun “8-Chloro-4-[1-(phenylsulfonyl)indol-3-yl]-3a,4,5,9b-tetrahydro-3H-cyclopenta[C]quinoline”, Acta Cryst. 2003, E59,049-052.
R. Sridhar and P.T. Perumal, “ Synthesis of novel 1-H-Pyrazole-4-Carboxylic acid esters by conventional and microwave assisted Vilsmeier cyclization of hydrazones”, Synth. Commun, 2003, 33, 1483.
Ompraba, A. Aysha, M. Yogavel, D. Velmurugan, S. Selvi, P. T. Perumal. S. Shanmuga Sundara Raj, S. H.-K. Fun, Z. A. Rafi. 2-Cyano-3-dimethylamino-N-(2,5-methylphenyl)acrylamide , Acta Cryst. 2003 ,E59, 0353-355.
R. Sridhar and P.T. Perumal, “ Synthesis of acyl azides using the Vilsmeier complex” Synth. Commun., 2003, 33, 607-611.
94.M. Anniyappan, D. Muralidharan and P.T. Perumal “ Triphenylphosphonium perchlorate – an efficient catalyst for mono and bis intramolecular imino Diels- Alder reactions: Synthesis of tetrahydrochromanoquinolines., Tetrahedron Letters 2003, 44, 3653.
C. Saikumar, K. Venkataboopathy, P.T.Perumal and D. Muralidharan “ Tanning theories: A view of present and possible options”, World Leather, 2003, 64.
M.Yogavel,P.G.Aravindan,D.Velmurugan,P.T.Perumal, S. Shanmuga Sundra Raj and H.K.Fun ,”N,N-Dimethyl-N-phenylformamidinium perchloride” Acta Cryst. 2003, E59 ,0662.
S. Thennarasu and P.T. Perumal “5-(1-Acetamido) benzyl-5-methyl Imidazolidin- 2,4-dione”, Molbank, 2003, M326.
M.Yogavel,P.G.Aravindan,D.Velmurugan, K.Sekar, S.Selvi, P.T.Perumal, S.Shanmuga Sundra Raj and H.K.Fun” Supramolecular structures of 2-cyano-3-dimethylamino-N-(4-methylphenyl)acrylamide and 2-cyano-3-dimethylamino-N-(4-methoxyphenyl)acrylamide , Acta Cryst. 2003, C59, 0394.
S.Baskaran, S.Selvanayagam, D.Velmurugan, K.Ravikumar, M.Anniyappan, D.Muralidharan and P.T.Perumal, “N-(4a-Morpholino-2,3,4,4a,9,9a-hexahydro1H-xanthen-9-yl) phenylamine”, Acta cryst. 2003, E59, 01301.
P.G.Aravindan, S.Selvanayagam, M.Yogavel, D.Velmurugan, K.Ravikumar, R.Nagarajan and P.T.Perumal, “3-Chloro-3-(9-ethyl-6-methyl-9H-carbazol-3-yl)propenal”, Acta cryst.2003, E59,01432.
G.Karthikeyan and P.T.Perumal, “ An ionic liquid mediated efficient oxidatation of alcohols using o-iodoxybenzoic acid (IBX) – a simple and eco-friendly protocol”, Synlett, 2003, 2249-2250.
P.G.Aravindan, S.Selvanayagam, D.Velmurugan, K.Ravikumar, R.Nagarajan and P.T.Perumal, “C- Halogen interactions in 4-chloro-2-(9-ethylcarbazol-3-yl)-1,2- dihydroquinoline –1-carbaldehyde”, Acta cryst.2003, E59,o1564-o1566.
M.Balasubramanian, S.Thennarasu,T.Sudhakaran, P.T.Perumal “Spectrophoto-metric and Flurimetric Determination of Hexamine in pure form and its Pharmaceutical Formulation” Bio.Pharm.Bull 2003,26(8)1211-1214.
S.Etti,G.Shanmugam,M.N.Ponnusamy,R.Sridhar,R.Murugan, P.T.Perumal and K.Ravikumar “Ethyl 3-methyl-1-(2,4-dinitrophenyl)-1H-pyrazole-carboxylate” Acta Cryst. 2003,E59,1835-1837.
P.Shanmugam, G.Annie and P.T.Perumal , “ Synthesis of novel 3,4-dihydropyrimidinones on water soluble solid support catalysed by indium triflate” J. Heterocyclic Chem.,2003, 40, 879-883.
P. Shanmugam, P.T. Perumal, “ 3,4-Dihydropyrimidin-2(1H)-ones by Biginelli condensation promoted by triphenylphosphonium perchlorate”, J.Chem.Res. 2003, 601-602.
S. Nandagopal, G. Annie, P. T. Perumal “Microwave assisted one pot synthesis of 9-aryl-3,3,6,6-tetra methyl-3,4,6,7,9,10-hexahedro-1,8(2H, 5H)acridinedione, Indian J. Chem. Sec B, 2003, 42B, 3145-3147.
M.Balasubramanian, S.Thennarasu, P.T.Perumal and A.B.Mandal, “ Spectrophotometric, spectrofluorimetric and high performance liquid chromatographic methods for the determination of hexamine in tablets”, Indian J.Pharm.Sci. 2003 643-645.
K.Hemanth Kumar, D.Muralidharan and P.T.Perumal, “ Indium (III) chloride / silica gel – promoted facile and rapid cyclization of 2-amino chalcones to 2-aryl – 2,3-dihydroquinolin-4(1H)-ones under solvent free conditions”, Synthesis 2004, 63.
R. Nagarajan, C. J. Magesh and P.T.Perumal, “ Inter- and Intramolecular imino Diels-Alder reactions catalysed by sulfamic acid : A mild and efficient catalyst for a one-pot synthesis of tetrahydroquinolines”, Synthesis, 2004, 69.
P.Shanmugam, C.Sabastein and P.T.Perumal, “Synthesis of fused dihydropyrimidinones from cyclic –1,3-dicarbonyl compounds: Modified Biginelli synthesis of 1,2,3,4,5,6,7,8-octahydroquinazolinediones and 3,4-dihydro-1H-indeno[1,2-d]pyrimidine-2,5-diones”, Indian J.Chem., 2004, 43B, 135.
R. Nagarajan and P.T. Perumal “Potassium Hydrogen Sulfate-Catalyzed Reactions of Indoles: A Mild, Expedient Synthesis of Bis-Indolylmethanes”, Chemistry Letters,33, 2004, 288.
R.Sridhar and P.T. Perumal, “A Novel Method for the Synthesis of 2(3H)-Benzimidazolones, 2(3H)-Benzoxazolone and 2(3H)-Benzothiazolone via In Situ Generated Ortho Substituted Benzoic Acid Azides: Application of Ammonium Azide and Vilsmeier Complex for Acid Azide Generation”, Synthetic Communications, 2004, , 34, 735-742.
S. Nandagopal, B.Geetha, P. T. Perumal, “A facile synthesis of novel 4-aryl- 8-(4-(aryl)-3a,4,5,9b-tetrahydro cyclopenta[c]quinolin-8-ylmethyl)- 3a,4,5,9b-tetrahydro-3h-cyclopenta[c] quinoline: indium trichloride catalyzed intermolecular imino diels-alder reaction of cyclopentadiene with schiff's bases”, Synthetic Communications, 2004, 34, 1157-1161.
M. Anniyappan, D. Muralidharan, P.T. Perumal, “Indium trichloride catalysed in situ generation of enamines and cyclisation with imines:a novel route for the synthesis of hexahydroxanthene-9-N-arylamines” Tetrahedron ,2004, 60, 2965-2969.
C.J. Magesh, R. Nagarajan, M. Karthick and P.T. Perumal, “Synthesis, characterisation of bis(indolyl)methanes, tris(indolyl)methanes and new diindolylcarbazolylmethanes mediated by Zeokarb-225, as a novel, recyclable, ecobenign heterogenous catalyst.” Journal of Applied Catalysis-A, General, 2004, 266 , 1-10,
C.J. Magesh and P.T. Perumal, “ Highly diastereoselective inverse electron demand (IED) Diels-Alder reaction mediated by chiral salen-AlCl complex: the first, target oriented synthesis of pyranoquinolines as potential antibacterial agent”, Bioorganic & Medicinal Chemistry Letters, 2004, 14, 2035-2040.
R. Nagarajan, and P.T. Perumal ,”A facile method for the synthesis of acetylcarbazoles and carbazole aldehydes” , Synthetic Communications, 2004, 34, 2127- 2133 .
Y. Zulykama, R. Nagarajan and P.T.Perumal, “Triphenyl Phosphonium Perchlorate catalyzed Imino-Diels-Alder reactions: Diastereoselective Synthesis of Indolylquinolines.” Synthetic Communications , 2004 ,34, 1309-1315.
R. Nagarajan and P.T.Perumal, “A Short route to Heteroarylcarbazoles: Synthesis of Pyrazolylcarbazoles and Carbazolylquinolines” Synthesis, 2004 , 1269-1273.
R.Senthil Kumar,R.Nagarajan and P.T.Perumal, “Inverse Electron Demand Diels-Alder Reactions of Heterodienes Catalysed by Potassium Hydrogen Sulfate: Diasteroselective,One – Pot Synthesis of Pyranobenzopyran,Furanobenzopyran and Tetrahydroquinolines Derivatives” Synthesis,2004 ,949.
R. Nagarajan,D.Muralidharan and P. T. Perumal, “A new and facile method for the synthesis of nitrocarbazoles by urea nitrate”, Synthetic communications, 34, 2004, 1259-1264.
K. Hemanth Kumar, S. Selvi and P.T. Perumal “A facile synthesis of 4,5-dihydropyrazolo[4,3-c]-quinolines with Vilsmeier reagent.” Journal of chemical research, 2004, 218-219.
P. Arumugam, G.Karthikeyan, and P. T. Perumal, “A Mild, Efficient, and Inexpensive Protocol for the Selective Deprotection of TBDMS Ethers Using KHSO4” Chemistry Letters 2004, 33, 1146 – 1147.
R.Sridhar, G. Sivaprasad and P. T. Perumal “An efficient synthesis of 1H-pyrazole-4-carboxylic acid esters with Vilsmeier reagent under neat conditions” Journal of Heterocyclic Chemistry, 2004, 41, 405-406.
P.T. Perumal ,M. Anniyappan and D. Muralidharan “A Convenient method for deoximation of carbonyl compounds using urea nitrate under microwave irradiation “, J.Chem. Sciences (Proceedings of Ind. Acad. Sci.) 2004 ,116, 261.
G. Karthikeyan and P. T. Perumal. “A Mild, Efficient and Improved Protocol for the Friedländer Synthesis of Quinolines using Lewis acidic Ionic Liquid” Journal of Heterocyclic Chemistry, 2004, 41,1039.
K.Hemanth Kumar, D.Muralidharan and P.T.Perumal, “ An efficient oxidation of 2-aryl-1, 2,3,4-tetrahydro-4-quinolones employing ferric chloride hexahydrate–methanol: synthesis of naturally occurring 4-alkoxy-2-arylquinolines”. Tetrahedron Letters, 2004 , 45, 7903-7906.
R.Sridhar, P.T.Perumal, S.Etti,G.Shanmugam,M.N.Ponnuswamy,V.R.Prabavathy and N.Mathivanan, “ Design, synthesis and ant-microbial activity of 1H-pyrazole carboxylates”, Bioorganic and Medicinal Chemistry Letters 2004, 14, 6035-6040.
E.Elamparuthi,M. Anniyappan, D. Muralidharan and P.T. Perumal “ InCl3 as an efficient catalyst for intramolecular imino Diels-Alder reactions: Synthesis of tetrahydrochromanoquinolines”, Arkivoc, 2005,(xi)6-16.
R.Sridhar, P.T.Perumal,”A new protocol to synthesize 1,4-dihydropyridines by using 3,4,5- trifluoroenzeneboronic acid as a catalyst in ionic liquid: synthesis of novel 4-(3-carboxyl- 1H-pyrazol-4-yl)-1,4-dihydropyridines” , Tetrahedron 2005,61,2465 - 2470.
P. Arumugam, G. Karthikeyan, R. Atchudan, D. Muralidharan, and P. T. Perumal “A Simple, Efficient and Solvent-Free Protocol for the Friedländer Synthesis of Quinolines by Using SnCl2·2H2O” Chemistry Letters 2005, 34, 314-315.
M. Karthik, C. J. Magesh, P. T. Perumal, M. Palanichamy, Banumathi Arabindoo, V. Murugan, “ Zeolite-catalyzed ecofriendly synthesis of vibrindole A and bis (indolyl)methanes”, Applied Catalysis A: General, 2005, 286, 137-141.
P. Arumugam and P. T. Perumal, “A New Purification Process for Pharmaceutical and Chemical Industries”, Organic Process Research & Development , 2005, 9, 319-320.
.Shanthi and P.T.Perumal, “Triphenyl Phosphonium Perchlorate- Catalyzed Imino Diels- Alder Synthesis of Azabicyclo(2.2.2)0ctan-5-ones” Synth. Commun. 2005, 35, 1319-1327
R.Senthil Kumar,R.Nagarajan and P.T.Perumal, “Sulfamic Acid: An Efficient catalyst for the Diastereoselective, One-Pot Synthesis of Pyrano benzopyrans, Furano benzopyrans and Ethoxy benzopyrans" “Letters in Organic Chemistry" 2005 , 2 , 458-460
Y.Zulykama, R. Nagarajan and P.T.Perumal “A Facile Method For The Synthesis of Pyrazolyl and Pyrazolinyl Carbazoles" “Letters in Organic Chemistry" 2005, 2, 569.
G.Sivaprasad and P.T.Perumal,” Synthesis of novel 4-pyrazolyl-2-oxo-1,2,3,4-tetrahydro- pyrimidines promoted by phosphotungstic acid”, J. Heterocyclic Chem. 2005, 42, 863.
K.Hemanth Kumar, and P. T. Perumal ,” A Novel One-Pot Synthesis of 4-Chloro-2H- chromenes via the Vilsmeier Reaction of 2'-Hydroxychalcones”, Chemistry Letters., 2005, 34, 1346 .
R. Murugan, M. Karthikeyan P. T. Perumal and B. S.R. Reddy “A mild, efficient and improved protocol for the synthesis of novel indolyl crown ethers, di(indolyl)pyrazolyl methanes and 3-alkylated indoles using H4[Si(W3O10)3]” Tetrahedron, 2005, 61, 12275.
G. Karthikeyan and P.T. Perumal, Ionic liquid promoted simple and efficient synthesis of - enaminones from 1,3-dicarbonyl compounds- One-pot three component reaction for the synthesis of substituted pyridines. Can. J. Chem, 2005, 186, 1746.
R Nagarajan, J C A Anthonyraj, D Muralidharan, C Saikumar & P T Perumal,”A convenient method for the oxidation of Hantzsch 1,4-dihydropyridines with N-bromo succinimide”, Indian J.Chemistry, 2006, 45B, 826-828.

R. Nagarajan and P.T. Perumal, An Unusual Hydrogen addition of Indolo-2, 3- quinodimethanes to Dimethyl indoles in the presence of 1,3-azoles, J.Chem.Sci. (Proceedings of Indian academic of science) 2006 195-198.
. Sivaprasad, R.Sridhar and P.T.Perumal, Selective synthesis of some 4,5-dihydro-2h- benzo[g]indazoles and 8,9-dihydro-2h-benzo[e]indazoles via the Vilsmeier-Haack reaction under thermal and microwave assisted conditions, J. Heterocyclic Chem. 2006, 43, 389-394.
R.Sridhar, P.T.Perumal,” Chiral shift reagent catalyzed, diastereoselective imino Diels-Alder reaction: Synthesis of pyrazolyl tetrahydroquinolines'” Can J.Chem. 2006,84, 464-468.
G. Sivaprasad, R.Rajesh and P.T.Perumal, “Synthesis of quinaldines by Doebner – Miller reaction under thermal and microwave irradiation conditions using phosphotungstic Acid”, Tetrahedron Lett. , 2006, 47, 1783.
G.Savitha and P.T.Perumal, “ An efficient one pot synthesis of tetrahydroquinone derivatives via Aza Diels-Alder reaction mediated by ceric ammonium nitrate in the oxidation of heteroarylquinolines,” Tetrahedron Lett. 2006, 47,3589-3593.
P. Arumugam and P.T. Perumal ,”SnCl.2H2O - An Alternative to Lewis Acidic Ionic Liquids” , Chemistry Letters 2006, 35, 632 .
N. Panneer Selvam, C. Saravanan, D. Muralidharan and P. T. Perumal,”Water mediated synthesis of quinolines – A new green approach to the Friedländer annulation” J. Heterocylic.Chem. 2006, 43, 1379-1382.
K. Sujatha, P. Shanmugam, P. T. Perumal, D. Muralidharan, M. Rajendran “Synthesis and cardiac effects of 3,4-dihydropyrimidin – 2 (1h) – one-5 carboxylates” Bioorganic & Medicinal Chemistry Letters 2006, 16, 4893-4897.
R. Senthil Kumar and P. T. Perumal, “Michael addition of indoles to electron deficient olefins in water catalysed by KHSO4” J. Heterocylic.Chem. 2006, 43, 1383-1385.
K. Hemanth Kumar and P. T. Perumal, “ A simple and facile procedure for the cyclization of 2’-amino and 2’-hydroxychalcones using silica-supported sodium hydrogen sulphate as heterogenous catalyst” Can. J. Chem. 2006, 84, 1079-1083.
N. Panneer Selvam and P. T. Perumal, “A new versatile synthesis of acetamidophenols promoted by Ce(SO4)2” Tetrahedron Letters 2006, ,47, 7481 – 7483.
P. Shanmugam and P. T. Perumal “Regioselective dehydrogenation of 3,4-dihydropyrimidin-2(1H)-ones mediated by ceric ammonium nitrate” Tetrahedron 2006 , 62, 9726-9734.
G. Sivaprasad, P. T. Perumal, N. Mathivanan, “Synthesis Antimicrobial Activity of Pyrazolylbisindoles” Bioorganic & Medicinal Chemistry Letters 2006, 16, 6302-6307.
R. Komalavalli, C. Saikumar, D. Muralidharan and P. T. Perumal, “Studies on addition of schiff base type compounds to wattle tannis for leather application” Cuoio Pelli Materi Concianti, 2006, 275-284.
D. Gaythri, D. Velmurugan, K. Ravikumar, G. Savitha and P. T. Perumal, “Ethyl 5-hydroxy-3- (3-methoxybenzoyl)-1’,5-dimethyl-2’-oxo-4,5-dihydro-1’H-spiro[furan-2(3H),3’(2’H)- indole]-4-carboxylate” Acta Crystallographica Section E, 2006, E62, o5947-o5949.
Shanmugam and P. T. Perumal, “An unusual oxidation-dealkylation of 3,4- dihydropyrimidin-2(1H)-ones mediated by Co(NO3)2.6H2O/K2S2O8 in aqueous acetonitrile”, Tetrahedron 2007 ,63, 666-672.
G.Shanthi and P.T.Perumal, “ A New InCl3-Catalyzed, Facile and Efficient method for the synthesis of Spirooxindoles under Conventional and Solvent-free Microwave Condition”, Tetrahedron, 2007, 63, 2057-2063.
P. Shanmugam, K. Hemanth Kumar and P. T. Perumal “An efficient Mn(III) acetate mediated diasteroselective [3+2] oxidative addition of 1,3-dicarbonyl compounds to chalcones” J.Heterocylic Chem. 2007, 44, 1.
Y.Zulykama and P.T.Perumal "Functionalization of Baylis-Hillman bromides with symmetric and unsymmetric bifunctional aromatics" Aust. J. Chem., 2007, 60, 205 –207.
G.Savitha and P.T.Perumal, “An Efficient One-Pot Synthesis of Spiro dihydrofuran Oxindole and Spiro 2-hydroxytetrahydrofuran Oxindole Derivatives Via 3+2 Oxidative Cycloaddition Mediated by CAN” Tetrahedron Lett. 2007, 48, 2943-2947.
. V.Sridharan, P.T.Perumal, C.Avendafio and J. C. Menendez “The First Imino Diels-Alder Reaction involving an α,β-unsaturated Hydrazone as the Dienophile: Three-component, Stereoselective Synthesis of C-4 Functionalized 1,2,3,4-Tetrahydroquinolines Catalyzed by Indium Trichloride” Org. Biomol. Chem., 2007, 5, 1351 – 1353.
D. Gaythri, D. Velmurugan, K. Ravikumar, G. Savitha and P. T. Perumal, “3-(4- Methoxyphenyl)-1’,6,6-trimethyl-4,5,6,7-tetrahydrospiro[1-benzofuran-2,3’(3H,2’H)-1H- indole]-2’,4-dione” Acta Crystallographica Section E, 2007, E63, o1034-o1036.
Gaythri, D. Velmurugan, K. Ravikumar, G. Savitha and P. T. Perumal, “3-(3- Methoxybenzoyl)-1’,6,6-trimethyl-4,5,6,7-tetrahydrospiro[benzo[b]furan-2(3H),3’(2’H)-1H- indole]-4,2’-dione” Acta Crystallographica Section E, 2007, E63, o846-o848.
V.Sridharan, P. T. Perumal, C. Avendan˜o and J. C. Menendez, “A new three-component domino synthesis of 1,4-dihydropyridines” Tetrahedron, 2007, 63, 4407-4413.
Gaythri, D. Velmurugan, K. Ravikumar, K.Karthikeyan and P. T. Perumal, “3-[3-(4- Ethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl)-4-nitro-2,5-diphenylisoxazolidine,“Acta Crystallo- graphica Section E, 2007, E63, o2216-o2217.
Gaythri, D. Velmurugan, K. Ravikumar, Y. Zulykama and P. T. Perumal, “2-(Methoxycarbonyl)-3-phenylprop-2-enyl-3-hydroxynaphthalene-2-carboxylate,“Acta Crystallographica Section E, 2007, E63, o2297-o2299.
K.Karthikeyan, P.T. Perumal, S. Etti and G. Shanmugam, “ Diastereoselective syntheses of pyrazolyl isoxazolidines via 1,3-dipolar cycloaddition”, Tetrahedran, 2007,63,10581-10586.
K. Hemanth Kumar and P. T. Perumal, “ A novel one-pot oxidative cyclization of 2’-amino and 2’-hydroxychalcones employing FeCl3.6H2O-methanol. Synthesis of 4-alkoxy-2-aryl-quinolines and flavones,” Tetrahedron, 2007, 63, 9531-9535.
P. Shanmugam, P. Boobalan and P.T. Perumal,”A novel method for the synthesis of highly functionalized 3,4-dihydropyrimidin-2(1H)-oones through the 1,4-addition on pyrimidin-2(1H)-ones,”Tetrahedron, 2007, 63, 12215-12219.
G. Shanthi and P.T. Perumal, “An eco-friendly synthesis of 2-aminochromenes and indolyl chromenes catalyzed by InCl3 in aqueous media”, Tetrahedron Letters, 2007, 48, 6785-6789.
N. Panneer Selvam, G. Shanthi and P.T. Perumal, “Ceric-sulfate-catalyzed synthesis of 14-aryl- or 14-alkyl-14H-dibenzo[aj]xanthene under conventional heating and microwave irradiation,” can.J.Chem, 2007, 84, 989-995.
K. Hemanth Kumar and P. T. Perumal, “ A novel One-pot oxidative deformylation of N- Formyldihydroquinolines Employing Ferric Chloride Hexahydrate.Synthesis of 4-phenylquolines and 4-chloro-2-(1,3-diphenyl-1H- pyrazol-4-yl)quinolines”, J. Heterocyclic Chem. 2008 ,597.
A. Rajendran, C. J. Magesh and P.T. Perumal “DNA–DNA cross-linking mediated by bifunctional [SalenAlIII]+ complex” Biochimica et Biophysica Acta (BBA) - General Subjects 2008, 1780, 282-288.
S. Etti, K. Karthikeyan, G. Shanmugam and P. T. Perumal “3-[3-(4-Bromophenyl)-1-phenyl-1H-pyrazol-4-yl]-5-ethoxy-2-phenylisoxazolidine” Acta Cryst. 2008, E64, o342.
N. Panneer Selvam, S. Saranya, and P. T. Perumal “A convenient and efficient protocol for the synthesis of symmetrical N,N′-alkylidine bisamides by sulfamic acid under solvent-free conditions” Can. J. Chem. 2008,86, 32-38.
N. Panneer Selvam and P.T. Perumal “A simple and efficient method for the synthesis of amidophenols using iodine as catalyst under neat condition” Tetrahedron, 2008, 64, 2972-2978.
C. Praveen, K. Hemanth Kumar, D. Muralidharan and P.T. Perumal. “Oxidative cyclization of thiophenolic and phenolic Schiff’s bases promoted by PCC:a new oxidant for 2-substituted benzothiazoles and benzoxazoles” Tetrahedron, 2008, 64, 2369-2374.
D.Gayathri, D. Velmurugan, G. Shanthi, P.T. Perumal and K. Ravikumar “4’-Amino-2,2”-dioxo-2,2’, 3,3”-tetrahydro-1H-indole-3-spiro-1’-cyclopent-3’-ene-2’-spiro-3”-1H-indole-3’,5’,5’-tricarbonitrile dehydrate”, Acta Cryst. 2008. E64, o501-o502.
P. Arumugam and P. T. Perumal “Hantzsch Synthesis of Polyhydroquinolines and Polyhydroacridinones-A simple, Efficient and Neat Protocol” Indian. J. Chem., Sec. B, 2008, 47B, 1084-1090.
R. Senthil Kumar, K. Karthikeyan, P.T. Perumal. “An efficient procedure for the TEMPO-catalyzed oxidation of alcohols to aldehydes and ketones using ferric chloride as terminal oxidant”, Can. J. Chem. 2008, 86, 720-725.
G. Shanthi, P.T. Perumal. “An InCl3 catalyzed facile one-pot synthesis of novel dispiro[cyclopent-3′-ene]bisoxindoles”, Tetrahedron Letters, 2008, 49, 7139-7142.
G.Shanthi, P.T. Perumal. “Indium-Mediated One-Pot Synthesis of New 4-Allyl-2-amino-4H-chromenes in Water”, Synlett, 2008, 2791.
G. Savitha, R. Sudhakar, P.T. Perumal. “An efficient one-pot synthesis of spiro dihydrofuran fluorene and spiro 2- hydroxytetrahydrofuran fluorene derivatives via [3+2] oxidative cycloaddition mediated by CAN”. Tetrahedron Letters, 2008,7260.
P. Ramesh,A. Subbiahpandi, P. Thirumurugan, P. T.Perumal and M. N. Ponnuswamy “ 3-[4-(2,4-Dichlorophenyl)-3,5-dicyano-6-methoxypyridin-2-yl]indole” Acta Cryst. 2008. E64, 1892.
P. Ramesh, A. Subbiahpandi and P. Thirumurugan, Paramasivan T. Perumal and M. N. Ponnuswamy “3-[3-Cyano-4-(2,4-dichlorophenyl)-1,4-dihydro-6-(2-pyridyl)pyridin-2-yl]indole“ Acta Cryst. 2008, E64, 1891.
M. Damodiran, R. Senthil Kumar P. M. Sivakumar, M. Doble and P. T. Perumal. “A simple protocol for the michael addition of indoles with electron deficient olefins catalyzed by TBAHS in aqueous media and their broad spectrum antibacterial activity”, Journal of Chemical Sciences, 2009, 121, 65.
P.Thirumurugan, D.Muralidharan and P.T. Perumal. “Synthesis and photophysical studies of Quinoxaline and Pyridopyrazine derivatives”. Dyes and Pigments, 2009, 81, 245 – 253.
K. Sujatha, P. T. Perumal, D. Muralidharan & M.Rajendran, “Synthesis, analgesic and anti-inflammatory activities of bis(indolyl)methanes”, Indian J. Chem. 2009, 48B,267.
P. Jayashree, G. Shanthi and P. T. Perumal, “Indium trichloride catalyzed one-potsynthesis of new (2-amino-3-cyano-4H-chromen-4-yl) phosphonic acid diethyl ester” Synlett., 2009, 917.
C.Praveen, Y.W.Sagayaraj, P.T.Perumal, “Gold(I) catalyzed sequential cycloisomerization\ bis-addition of o-ethynylanilines: and efficient access to bis(indolyl)methanes and di(indolyl)indolin-2-ones” Tetrahedron Lett. 2009, 644-647.
N. Panneer Selvam and P. T. Perumal, “Cerium(IV) sulfate catalyzed simple and convenient synthesis of β-acetamidocarbonyl compound” Can. J. Chem., 2009, 87,689.
194. K. Sujatha, G. Shanthi, N. Panneer Selvam, S. Manoharan, P. T. Perumal & M.Rajendran Synthesis and antiviral activity of 4,4'-(arylmethylene)bis(1H-pyrazol-5-ols) against peste des petits ruminant virus (PPRV)” Bioorg. Med. Chem. Lett. 2009 ,19, 4501.
T. Haribabu, G. Shanthi and P. T. Perumal “A facile one-pot synthesis of N-substituted tetrahydroquinolines” Tetrahedron Lett. 2009 , 50,2881.
G. Shanthi and P. T. Perumal “InCl3 catalyzed efficient one-pot synthesis of 2-Pyrrolo-3’-yloxindoles” Tetrahedron Lett. 2009, 50, 3959.
M. N. Mohideen, A. S. Pandi, N. Panneer Selvam, P. T. Perumal and M. Damodiran “[1-(3-Nitrophenyl)-2,3-dihydro-1Hnaphtho[1,2-e][1,3]oxazin-3-ylidine]malonaldehyde” Acta Cryst. (2009). E65, o582.
N. Panneer Selvam ,P.T. Perumal, “Cerium(IV) sulfate catalyzed simple and convenient synthesis of β-acetamidocarbonyl compounds”, Arkivoc 2009 (x) 265.
M. N. Mohideen, A. S. Pandi, N. Panneer Selvam and P. T. Perumal, “ N-[(2-Hydroxy-1-naphthyl)(3-nitrophenyl)methyl]acetamides”, Acta Cryst. 2009, E65, o714–o715.
P.Thirumurugan, D.Muralidharan and P.T. Perumal, “A simple one-pot synthesis of functionalised 3-indolyl 2,2'-bipyridine derivatives via multi-component reaction under neat condition” Tetrahedron Let., 2009, 50, 4145–4150.
M. N. Mohideen, S.Thenmozhi, A. S. Pandi, N. Panneer Selvam and P. T. Perumal N-[(2-Hydroxy-1-naphthyl)(2-hydroxyphenyl)methyl]acetamides” Acta Cryst. 2009. E65, o740.
P. Shanmugam, M. Damodiran, K. Selvakumar and P.T. Perumal “Synthesis of functionalised 1,2,3-triazole derivatives of 2-indolones from Morita-Baylis-Hillman adducts of isatin via “Click Chemistry” J. Heterocyclic Chem. 2009 (Accepted).
P. Ramesh, A. Subbiahpandi, P. Thirumurugan, P. T.Perumal and M. N. Ponnuswamy “4-(4-Bromophenyl)-6-(1H-indol-3-yl)-2,2’-bipyridine-5-carbonitrile” Acta Cryst. 2009. E65, o450.
P. Ramesh, A. Subbiahpandi P. Thirumurugan, P. T.Perumal and M. N. Ponnuswamy “2-(1H-indol-3-ylcarbonyl)acetonitrile” Acta Cryst. 2009. E65, o447.
G. Shanthi and P. T. Perumal, Urmila Rao and P.K. Sehgal, “ Synthesis and antioxidant activity of Indolyl chromenes”, Indian J. Chem. 2009.
Y.Zulykama and P.T.Perumal, “Synthesis and Cyclo-oligomerization of 2-(Bromomethyl)-3-aryl-2-propenoic acid derivatives” Tetrahedron Lett. 2009, 50, 3892.
C.Praveen, P. Kiruthiga, P.T.Perumal, ’Gold(III) bromide catalyzed furannulation of 2-alkynyl-cycloalk-2-enols: An expedient route to fused furans” Synlett. 2009,1990.
M. Damodiran, D. Muralidharan, P.T. Perumal, “Regioselective Synthesis and biological evaluation of bis(indolyl)methane derivatized 1,4- disubstituted 1,2,3-triazoles as anti-infective agents” Bioorganic and Medicinal Chemistry Lett. 2009, 19, 3611–3614
P. Ramesh, S. S. Sundaresan, P. Thirumurugan, P.T. Perumal and M. N. Ponnuswamy, “4-(2,4-Dichlorophenyl)-6-(1H-indol-3-yl)-2,2’-bipyridine-5-carbonitrile” Acta Cryst. 2009. E65, o996.
P. Ramesh, S. S. Sundaresan, P. Thirumurugan, P.T. Perumal and M. N. Ponnuswamy, “4-(4-Chlorophenyl)-6-methoxy-2,2’-bipyridine-5-carbonitrile” Acta Cryst. 2009. E65, o995.
P. Ramesh, S. S. Sundaresan, N. Vidhya Lakshmi, P. T. Perumal and M. N. Ponnuswamy, “3’-Benzyloxy-3-hydroxy-3,3’-bi-1Hindole-2,2’(3H,3’H)-dione monohydrate” Acta Cryst. 2009. E65, o994.
M. NizamMohideen, S. Thenmozhi, A. SubbiahPandi, G. Savitha and P. T. Perumal Ethyl30-(2,4-dichlorophenyl)-50-hydroxy-50-methyl-40,50-dihydrospiro[fluorene-9,20(30H) -furan]-40-carboxylate Acta Cryst. 2009. E65, o977.
M. NizamMohideen, S. Thenmozhi, A. SubbiahPandi, N. Panneer Selvam and P. T. Perumal N-[(2-Hydroxy-5-methoxyphenyl)- (3-nitrophenyl)methyl]acetamide Acta Cryst. 2009, E65, o829.
G. Shanthi, N. Vidhya Lakshmi, and P. T. Perumal A Simple And Eco-Friendly Synthesis of 3-Indolyl-3-hydroxy oxindoles and 11-Indolyl-11H-indeno[1,2-b]quinoxalin-11-ols in aqueous media Arkivoc 2009 (x) 121.
K. Karthikeyan, T Veenus Seelan, K G Lalitha, P.T.Perumal, “Synthesis and Antinociceptive Activity of Pyrazolyl Isoxazolines and Pyrazolyl Isoxazoles”, Bioorganic and Medicinal Chemistry Lett. 2009,19, 3370.
G. Savitha, K. Felix, P. T. Perumal, “Synthesis of Novel 3-Bromo,2H-Chromene derivatives-Palladium Catalyzed cyclization of Aryl Propargyl Ethers”, Synlett.2009,2079.
M. NizamMohideen, M. Damodiran, A. SubbiahPandic and P. T. Perumal, “3-(6-Benzyloxy-2,2-dimethylperhydrofuro[2,3-d][1,3]dioxol-5-yl)-5-(4-bromophenyl)-2-phenylperhydropyrrolo[3,4-d]-isoxazole-4,6-dione”, Acta Cryst. 2009, E65, o1156.
S. Nirmala, K. Karthikeyan, E. T. S. Kamala, L. Sudha and P. T. Perumal, “40-(4-Methoxyphenyl)-1,1’,1’’-trimethyldispiro[indoline-3,2’-pyrrolidine-3’,3’’-pyrrolidine]-2,2’’,5’’-trione”, Acta Cryst. 2009, E65, o1655.
N. Panneer Selvam, T. Hari Babu and P.T.Perumal, “A simple and convenient approach to the Friedländer synthesis of Pyrano[2,3-b]pyridines”, Tetrahedron 2009,65,8525
P. Thirumurugan and P. T. Perumal, “InCl3 mediated one-pot synthesis of indol-3-yl pyridine and 2,2'-bipyridine derivatives through multi-component reaction”, Tetrahedron, 2009, 65, 7620.
K.Karthikeyan and P.T.Perumal, “Synthesis of highly functionalized Spirobenzofuranols and Spirobenzofuranones by Baylis-Hillman reaction”, Synlett 2009, 2366.
M.Damodiran, N. Panneer Selvam and P.T.Perumal “Synthesis of highly functionalized oxazines by Vilsmeier cyclization of amidoalkyl naphthols”, Tetrahedron Lett. 2009, 50, 5474.
C.Praveen, K.Karthikeyan and P.T.Perumal, “Efficient synthesis of 3-substituted indoles through a domino gold(I) chloride catalyzed cycloisomerization/C3-functionalization of 2-(alkynyl)anilines”, Tetrahedron 2009,65,9244.
C.Praveen, P.Jagadesh and P.T.Perumal, “Gold(III) chloride catalyzed intermolecular dimerization of 2-ethynylanilines: Synthesis of substituted quinolines”, Synlett 2009,2795.
Y.Zulykama, U.Uma, P.Devi, and P.T.Perumal, “Chemo and Regioselective Functionalization of Morita Baylis-Hillman Bromides with Anthranilic acid”, Can. J. Chem, 2009, 87,1682
M.Damodiran, P.M.Sivakumar, R.Senthil Kumar, D.Muralidharan, B.V.N.Phani Kumar, M. Doble and P.T.Perumal, “Antibacterial activity, QSAR and Diastereoselective synthesis of isoxazolidine derivatives via 1,3-dipolar cycloaddition of D-glucose derived nitrone with olefin” Chemical Biology & Drug Design, 2009 ,74, 494
D.J.Nelson, Donna; P.T.Perumal, C.Brammer, N. Panneer Selvam "Effect of Single Walled Carbon Nanotube Association upon Representative amides”, J.Phys. Chem.C., 2009, 113, 17378.
K.Karthikeyan, R. Senthilkumar, D. Muralidharan and P.T.Perumal, “Diastereoselective synthesis of pyrrolidines via 1,3-dipolar cycloaddition of a chiral azomethine ylide” Tetrahedron Lett. 2009 , 50, 7175
P. Ramesh, S. S. Sundaresan, N. Vidhya Lakshmi, P. T. Perumal and M. N. Ponnuswamy, “1’-Methyl-2,2’’-dioxoindoline-3-spiro-2’-pyrrolidine-3’-spiro-3’’-indoline-4’,4’-dicarbonitrile” , Acta Cryst. 2009. E65, o1945.
P. Thirumurugan, A. Nandakumar, D. Muralidharan and P. T. Perumal, “A simple and convenient approach to the Kr€ohnke pyridine type synthesis of functionalised indol-3-yl pyridine derivatives using 3-cyanoacetyl indole” J. Comb. Chem., 2010, 12, 161.
G. Bhaskar, M. Solomon, G. Babu, D. Muralidharan and P.T. Perumal, “A simple and an efficient indium trichloride catalyzed benzyl etherification”, Indian J.Chem. 2010, 000
G. Shanthi and P.T. Perumal, “An efficient one-pot synthesis of novel pyrazolophthalazinyl Spirooxindoles”, Journal of Chemical Sciences, 2010, 000
T. Haribabu and P. T. Perumal , “A Novel Method for the Synthesis of Functionalized Spirocyclic Oxindoles by One-pot Tandem Reaction of Vinyl Malononitriles with Isatylidene Malononitriles”,Tetrahedron Lett., 2010, 51, 994.
R. Senthil Kumar, K. Karthikeyan, B.V.N. Phani kumar, D. Muralidharan and P. T. Perumal, “Synthesis of densely functionalised C-glycosides by a tandem oxy Michael addition- Wittig olefination pathway”, J. Carbohydrate Res., 2010, 345,457..
N.Vidhya Lakshmi, P. Thirumurugan and P.T.Perumal, “An expedient approach for the synthesis of Dispiro bisoxindoles, spiropyrrolidine oxindoles and spiroindan-1,3-diones ”, Tetrahedron lett,, 2010, 51, 1064
I. K. L. Tamikovan, A. SubbiahPandi, M. Damodiran, K. Karthikeyan and P. T.Perumal,
“Diethyl 2-oxo-3-(2-oxo-2,3-dihydro-1H-indole-3-ylidene)butanedioate, Acta. Cryst., 2010, E66, o37
C. Praveen, A. Kalyanasundaram and P. T. Perumal, “Gold(III)-Catalyzed Synthesis of Isoxazoles by Cycloisomerization of a,b-Acetylenic Oximes” Synlett. 2010, 777.
N. Vidhya Lakshmi, P. Thirumurugan, C. Jayakumar, P. T. Perumal, “An Easy Access to Novel Spiro-Fused Pyrrolo Benzo[b]thiophene 1,1-Dioxide Derivatives via 1,3-Dipolar Cycloaddition Using Benzo[b]thiophene 1,1-Dioxide” Synlett, 2010, 955.
T. Hari Babu, K. Karthik and P. T. Perumal, “A facile one-pot synthesis of functionalized spiro-oxindoles via vinylogous aldol reaction of vinyl malononitriles with isatin derivatives in aqueous media” Synlett. 2010, 1128.
P. Thirumurugan and P.T.Perumal “Synthesis and anti- Inflammatory activity of indol-3-yl pyridine derivatives through one-pot multicomponent reaction” JCSC, 2010.(accepted)
P. Thirumurugan, A.Nandakumar, B.V.N. Phanni kumar and P.T.Perumal, “Synthesis and NMR spectral assignment of indol-3-yl pyridines and α-aminophosphonates through one- pot multi-component reaction” Magnetic Resonance in Chemistry, 2010.(accepted)
K.Ramachandiran, K. Karthikeyan, D. Muralidaran and P. T. Perumal , “Synthesis of isoxazolo-benzoxepanes via Michael addition of indoles to nitroalkenes and sequential intramolecular nitrile oxide cycloaddition, Tetrahedron Letters , 2010, (In press).
G. Bhaskar, C.Saikumar and P. T. Perumal , “Indium(III) bromide catalyzed hydroarylation of diarylalkynes with indoles”, Tetrahedron Letters 2010, (In press)
P.Thirumurugan, A.Nandakumar, P.Vembu and P.T.Perumal, “One-pot multicomponent synthesis and antimicrobial evaluation of 2'-(indol-3-yl)-2-oxospiro(indoline-3,4'-pyran) derivatives”, Bioorganic and Medicinal Chemistry Lett. 2010. (accepted)
M. Damodiran, D.Muralidharan, and P.T.Perumal “Synthesis of substituted 1,3-oxazines using Sulfamic acid as an efficient and eco-friendly catalyst", J. Heterocylic Chem. 2010 ( Accepted).
K. Karthikeyan, D. Muralidaran and P. T. Perumal, “Synthesis, antibacterial activity evaluation and QSAR studies of novel dispiropyrrolidines ,” European Journal of Medicinal Chemistry, 2010 (accepted).

Paper presented in conferences and invited talks from 2000 onwards

P.T.Perumal, “ Synthetic applications of indium trichloride catalysed reactions, Golden Jubilee national seminar on recent trends in organic chemistry, Universitry of Madras, Chennai, Feb.2000.
P.T.Perumal, “ Synthesis of heterocyclic compounds by using Vilsmeier reagent “ Golden Jubilee seminar on recent trends in organic synthesis“, Dept. of chemistry, VHNS college, Virudhunagar March 2000.
P.T. Perumal, “Synthesis of organic compounds by using Vilsmeier reagent ”, Organometallic and physical organic chemistry, Presidencey College, Chennai, Tamil Nadu. Aug,. 2000 .
P.T.Perumal, “Synthesis of Heterocyclic compounds by using Vilsmeier reagent and Indium trichloride, Refresher Course, Pondicherry University, Pondicherry, Sept. 2000.
P.T. Perumal, “Synthetic Studies on Vilsmeier Cyclisation with Heteroatom Substituted Substrates”, National Symposium on Metallo – Organic Chelates and Recent Advances in Chemistry, Presidencey College, Chennai, Tamil Nadu. February 2001.
P.T. Perumal, “Synthesis of heterocyclic compounds via imino Diels Alder reaction catalyzed by indium trichloride, urea nitrate, oxalic acid and PPh3.HclO4 and related reactins”, National Seminar on Recent Trends in Physical Organic Chemistry, V. H. N. S. N. College, Virudhunagar, Tamil Nadu. March 2001.
P.T.Perumal, “Synthesis of Heterocyclic compounds by using Vilsmeier reagent and Indium trichloride, Refresher Course, Universityof Madras Chennai - 2001.
P.T. Perumal, “synthesis of heterocyclic compounds using Vilsmeier reagent” , National seminar on pharmaceutical diversity in heterocyclic compounds held at Lucknow(Lucknow University) June-2001.
P.T.Perumal, “Synthesis of organic compounds by using Vilsmeier reagent”, Singapore International Chemical conference II, Singapore , Dec 2001.
P.T.Perumal, “Organic synthesis and asymmetric organic syntheis”, Invited lecture Dept of Chemistry, Anna University, March 2002.
P.T.Perumal, “Synthesis of Heterocyclic compounds by using Vilsmeier reagent and Indium trichloride, Refresher Course, Bharathidhasan University Trichy, July 2002.
P.T.Perumal, Organic synthesis using Indium trichloride as a reagent”, Prof. Sivasubramanian endorsement lecture, Dept of Chemistry, Madurai Kamaraj University, Madurai. Aug 2002.
P.T.Perumal, “ Microwave mediated organic synthesis”, National seminar on Enviro-friently chemistry,Lucknow University,Lucknow, Dec. 2002.
P.T.Perumal, “ synthesis of heterocyclic compounds via imino Diels-Alder reaction” conference on recent advances in methods of synthesis in chemistry, K.J Somaiya college of science and commerce held at Mumbai Feb-2003.
P.T.Perumal, “Synthesis of Heterocyclic compounds by using Vilsmeier reagent and Indium trichloride, Refresher Course, University of Madras, Inorganic Chemistry Dept.,Chennai.2003
P.T.Perumal, Invited lecture on “my journey into organic synthesis”, Sri Paramakalayani College, Alwarkurichi , TN , Sept.2003
P.T.Perumal, Invited lecture on Indium Trichloride catalysed Synthesis of organic compounds”SPIC Science Foundation,Chennai, Oct.2003
P.T.perumal, “ Microwave assisted synthesis of heterocyclic compounds” seminar on emerging trends in organic synthesis ,M.S.University of Baroda Vadodara , India October 2003.
P.T.Perumal , Invited talk “Synthesis of heterocycic compounds by using Vilsmeier reagent and Indium trichloride” IPCL, Baroda October 2003.
P.T.Perumal, Invited lecture on “Microwave assisted synthesis of heterocyclic compounds”On the occasion of Intrnational symposium on chemical education and research held at Loyollo College, Chennai January, 2004.
P.T.Perumal ,Chaired one section of seminar, conducted by vedic science conference held at Bangalore , January 2004.
P.T.Perumal, Invited lecture on “my journey into organic synthesis”, Bharathiyar women’s college, Chennai, July-2004.
P.T.Perumal , Invited lecture on “Asymetric synthesis and some anitimicrobial compounds synthesis”On the occasion of Workshop On Recent trends in medicinal chemistry ,Trichy August 2004
P.T.Perumal , Invited lecture on “Microwave Assisted Organic Synthesis” St.Joseph’s College.Trichy, Sept.2004.
P.T.Perumal, Invited lecture on “Synthesis of heterocyclic compounds using Vilsmeier reagent, Imino-Diels-Alder and cyclization reactions” On the occasion of Chemistry biology interface: synergistic new frontiers held at New Delhi , Org. By University of Delhi), November, 2004.
P.T.Perumal, “ Synthesis of heterocyclic compounds”, Science Club seminar, CLRI,Chennai. Dec. 2004.
P.T.Perumal, CRSI Medal Lecture on “Synthesis of novel heterocyclic compounds using Vilsmeier reagent”On the occasion of 7th CRSI National symposium in chemistry held at Kolkata February , 2005
P.T.Perumal , “ Chaired a session, in Recent trends in Sidha medicine, Captain Sreenivasamurthy research Institute, Chennai March 2005
P.T.Perumal, “Synthesis of Heterocyclic compounds using vilsmeier reagent, imino Diels-Alder and cyclization reactions”, Invited talk , Indian Institute of Chemical Technology, Hyderabad, May 2005.
P.T.Perumal, “ Microwave assisted syntheses of Heterocycic compounds”, Microwave application of organic synthetic and natural products , PSG college of Pharmacy, Coimbatore, July 2005.
P.T.Perumal, Invited lecture, “ Asymmetric Organic synthesis,J.S.S College of Pharmacy, Ooty, July 2005.
P.T.Perumal, “Indium trichloride mediated synthesis of biologically active heterocyclic compounds”, Recent advances in pharmaceutical chemistry and analytical technology, Periyar College for Pharmaceutical sciences for girls, Trichy, July 2005.
P.T.Perumal, “Identification of organic compounds by using 1H and 13C NMR technique”, New vistas in spectroscopy, Ismaliah College, Vaniyambadi, Tamil Nadu, August, 2005.
P.T.Perumal, “Asymmetric synthesis of biologically important compounds” Refresher course, Central Leather Research Institute, Chennai, August 2005.
P.T.Perumal, “Synthesis of Heterocyclic compounds using vilsmeier reagent, imino Diels-Alder and cyclization reactions’, Faculted de Pharmaceutical Chemistry, Universidad Complutense De Madrid, Consejeria De Sanidad Y Consumo De La Comunidad De Madrid, Madrid, December 2005.
P.T.Perumal, “Synthesis of novel heterocyclic compounds using vilsmeier Reagent”, Nineteenth National Annual Symposium & Professor Ram chand Paul Second Symposium on Recent Trends in Chemistry, Department of Chemistry, Punjab University, Chandigarh, December , 2005.
P.T.Perumal , “Synthesis, fractional crystallization and structure determination of the major isomers of imidazolidine-2,4-diones derived from amidoketones”, International Symposium on Advances in Organic Chemistry (INSOC-2006), School of Chemical Sciences Mahatma Gandhi University, Kottayam, Kerala, India, January, 2006.
P.T.Perumal, “Indium trichloride mediated synthesis of biologically active heterocyclic compounds”, Invited talk, Dept of Chemistry, IIT, New Delhi, February 2006.
P.T.Perumal, “ Synthesis of Novel Heterocyclic Compounds”, CRSI Seminar on recent Advances in Chemistry, Department of Chemistry, Annamalai University, Annamalainagar, TamilNadu, March 2006.
P.T.Perumal , “Synthesis of Heterocyclic compounds using vilsmeier reagent, Imino Diels-Alder and cyclization reactions”, National Symposium on New Challenges in Chemistry, Department of Chemistry, Guru Nank Dev University, Amritsar, March , 2006
P.T. Perumal, Chairperson of a section, National Conference on Recent Trends in Polymer Science and Technology (NCRTPST-2006), Coimbatore, July, 2006.
P.T. Perumal, “ Recent Synthesis of Heterocyclic Compounds”, Deprtment of Chemistry, Central University of Hyderabad, Hyderabad, July, 2006.
P.T.Perumal, “Synthesis of heterocyclic compounds by using cyclization reactions”, Refresher course, Dept. of Analytical Chemistry, University of Madras, Chennai, August, 2006.
P.T.Perumal, “Identification of Organic Compounds by using NMR Spectroscopy” Jain College of Pharmacy, Perungudi,Chennai, Aug 2006
P.T. Perumal, “ Recent Advances in Heterocyclic Chemistry” National Seminar on Recent Trends in Nanochemistry (UGC Sponsored Seminar), Tirupattur, Tamil Nadu, August, 2006.
P.T.Perumal, “Recent Advances in the synthesis of Heterocyclic Chemistry”, Vellore Institute of Technology, Vellore, TN, Sept.2006.
P.T.Perumal, “ Green chemistry approach towards the synthesis of Heterocyclic Chemistry”, A National seminar in Recent advances in chemical Sciences and an approach to green chemistry, Saurashtra University,Rajkot .Gujarat,Oct 2006.
P.T.Perumal, “Recent Advances in the synthesis of Heterocyclic Chemistry”, A National seminar in Recent advances in chemical Sciences and an approach to green chemistry, Saurashtra University,Rajkot .Gujarat,Oct 2006.
P.T.Perumal, Chaired one session in A National seminar in Recent advances in chemical Sciences and an approach to green chemistry, Saurashtra University,Rajkot .Gujarat,Oct 2006.
P.T.Perumal, “Identification of organic compounds by using 1H and 13C NMR technique.” A seminar on a modern instrumentation methods of Analysis .Vinayaka mission college of Engeenering, Oct. 2006 Chennai,
P.T.Perumal, “Identification of organic compounds by NMR methods.” A lecture for refresher course at the Dept of Environmental & herbal Sciences, Tamil University, Thanjavur , Dec 2006.
P.T.Perumal, “Asymmetric organic synthesis.” A lecture for refresher course, at Dept of Environment & Herbal Sciences, Tamil University, Thanjavur , Dec 2006.
P.T. Perumal, “ Recent methods for the Synthesis of Heterocyclic Compounds”, at Indian Society of Health Administrators, Bangalore, Dec 2006.
P.T.Perumal,”Chairing the Poster section at the International conference on nanomaterials and its applications –ICNA 2007, at NIT,Tiruchirapalli, TN, Feb 2007.
P.T.Perumal,”Chairing the Poster section at the National seminar on Non – conventional Techniques in synthesis 2007, at Ethiraj College for women , Chennai, Feb 2007.
P.T.Perumal, Chemistry Department’s Veledectory function Seminar on “ the synthesis of Heterocyclic compounds “ at Layolo College, Chennai, March 2007.
P.T.Perumal , “Recent methods in the synthesis of Heterocyclic compounds”. National seminar onrecent trends in Chemistry,at Banarus Hindu University, Varanasi, March 2007.
P.T. Perumal, “An efficient and green synthesis of Indolyl chromenes and their antibacterial and antioxidant activities”. Seminar on “Recent trends in Medicinal Chemistry”at Stella Maris College, Chennai, January 2008.
P.T. Perumal, “Synthesis, Antibacterial and antifungal activyt of substituted acetamido phenols and symmetrical N,N-allkylidine bisamides”. Seminar on “Recent trends in Medicinal Chemistry”at Stella Maris College, Chennai, January 2008.
P.T. Perumal, “Identification of organic compounds using NMR”. Seminar in University of Madras, Chennai, January 2008.
P.T. Perumal, “Green Chemistry approach to organic reactions leading to heterocyclic compounds”. Seminar on Green Chemistry, Alagappa university, Karaikudi, April 2008.
P.T. Perumal, “Synthesis of Oxygen and Nitrogen containing Heterocycles through Novel routes and Carbon Nanotubes”. Seminar on Emerging Trends in Chemistry, Cardamom planters Association College, Bodi, Tamil Nadu, July 2008.
P.T. Perumal, “Synthesis of Heterocycles and Carbon Nanotubes”. Seminar on Emerging Trends in Analytical Techniques, Isalamiah College, Vaniyambadi, Tamil Nadu, August, 2008.
P.T. Perumal, “Reactions with Carbon Nanotubes and Synthesis of Heterocycles”. Seminar on Nano Science and Technology - Challenges Ahead, Velammal Enginering College, Chennai, Tamil Nadu, August, 2008.
P.T. Perumal, “Green chemistry approach to organic reactions leading to heterocyclic compounds and carbon Nanotubes” Seminar on Emerging Trends in Chemistry, Rajkot, December 2008.
P.T. Perumal, “Environmental benign organic synthesis” National seminar, Government college, Anantapur, December 2008.
P.T. Perumal “Frontiers in Chemical Research” International Conference, Mangalore University, Mangalore, Karnataka, December 2008.
P.T. Perumal “Environmentally benign synthetic methodologies in chemistry” UGC sponsored National seminar, Kakathiya University Arts & College, Warangal, February 2009.
P.T.Perumal “Green chemistry approach to synthesis heterocyclic Compounds” Banarus hindu university, Varanasi, February 2009.
P.T. Perumal“Studies on Addition, Diels-Alder and Cyclization Reactions” Madras University, Chennai, March 2009.
P.T.Perumal “Green Chemistry Approach to Synthesis Heterocyclic Compounds” Sri Paramakalyani college, Alwarkurchi, TN, March 2009.
P.T.Perumal “Green Chemistry seminar-valedictory address” Alagappa university, Karaikudi, April 2009.
P.T.Perumal “Synthesis of Heterocyclic compounds by Green Chemistry Approach”, SRMV, Coimbatore, TN, July, 2009.
P.T.Perumal,” Key note address about modern trends in chemistry,” in a national seminar on Modern trends in chemistry, Thiagarajar College ,Madurai,September 2009.
P.T.Perumal “Application of Catalysr in organic synthesis” at National conference on material Science, Annamalai University,Chidambram, TN, Oct, 2009
P.T. Perumal ”Application of Catalyst in Organic Synthesis and Addition reactions” for refresher course, Department of chemistry, Madurai university, Madurai. November 2009.
P.T. Perumal, “Green chemistry approach to synthesis of heterocyclic compounds and the chemistry of carbon nanotubes” for refresher course, Department of chemistry, Madurai university, Madurai. November 2009.
P.T. Perumal, “Green chemistry approach to synthesis of heterocyclic compounds and Polymeric compounds” Department of Chemistry, National University of Singapore, Singapore. December, 2009.
P. T. Perumal, “Heterocyclic compounds in drug discovery, Department of chemistry, University of Delhi, Delhi, January, 2010.
P.T. Perumal ”Application of Catalyst in Organic Synthesis and Addition reactions” for refresher course, Department of chemistry, Bhrathiyar university, Coimbatore. Jan 2010.
P.T. Perumal, “Green chemistry approach to synthesis of heterocyclic compounds and the chemistry of carbon nanotubes” for refresher course, Department of chemistry, Bhrathiyar university, Coimbatore. Jan 2010.
P.T.Perumal, “Green Chemistry Approach to Synthesis the Heterocyclic Compounds” at National Conference on Green and Sustainable Chemistry, BITS, Pilani. Feb 2010.
P.T. Perumal ,” Application of Catalysts in Organic Synthesis and Addition Reactions” Chemistry-Current Focus, Madras Christian College, Chennai ,March 2010.
P.T. Perumal ,” Presidential address on Current focus”, Chemistry-Current Focus, Madras Christian College, Chennai, March 2010.

	Dr. P. T. Perumal Scientist G and Head

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