@article { ISI:000236913600006, title = {Natural kaolinitic clay: a remarkable catalyst for highly regioselective chlorination of arenes with Cl-2 or SO2Cl2}, journal = {Indian Journal of Chemistry Section B-Organic Chemistry Including Medicinal Chemistry}, volume = {45}, number = {4}, year = {2006}, month = {APR}, pages = {972-975}, publisher = {NATL INST SCIENCE COMMUNICATION}, type = {Article}, address = {DR K S KRISHNAN MARG, NEW DELHI 110 012, INDIA}, abstract = {

Natural kaolinitic clay containing transition metals such as Fe and Ti in its lattice has been found to exhibit unusual regioselectivity in the liquid-phase chlorination of arenes with either Cl-2 or SO2Cl2 as the chlorinating agent para-Chlorinated products are predominant for most of the substrates with an exceptional case of ortho-selectivity for the chlorination of aniline.

}, keywords = {Aniline, chlorination, chlorine, ortho-chloroaniline, sulfuryl chloride}, issn = {0376-4699}, author = {Jayachandran, B. and Phukan, P. and Daniel, Thomas and Sudalai, A.} } @article { ISI:000260290500013, title = {Efficient synthesis of antifungal pyrimidines via palladium catalyzed Suzuki/Sonogashira cross-coupling reaction from Biginelli 3,4-dihydropyrimidin-2(1H)-ones}, journal = {Tetrahedron}, volume = {64}, number = {44}, year = {2008}, month = {OCT}, pages = {10214-10223}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

An efficient regioselective approach to the synthesis of tetrasubstituted pyrimidines was developed by sequential functionalization of easily available Biginelli 3,4-dihydropyrimidine-2(1H)-ones via dehydrogenation, chlorination followed by palladium catalyzed C-C Suzuki/Sonogashira coupling reaction. All the synthesized compounds were evaluated in vitro for their antifungal activities against Candida albicans, Cryptococcus neoformans, Benjaminiella poitrasii, Yarrowia lipolytica, and Fusarium oxysporum, and antibacterial activities against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. (c) 2008 Elsevier Ltd. All rights reserved.

}, keywords = {Antifungal activities, Biginelli compounds, chlorination, Oxidation, Pyrimidines, Suzuki coupling}, issn = {0040-4020}, doi = {10.1016/j.tet.2008.08.033}, author = {Gholap, Atul R. and Toti, Kiran S. and Shirazi, Fazal and Deshpande, Mukund V. and Srinivasan, Kumar V.} } @article { ISI:000271067400004, title = {Cu(OTf)(2)-catalyzed alpha-halogenation of ketones with 1,3-dichloro-5,5 {\textquoteleft}-dimethylhydantoin and N-bromosuccinimide}, journal = {Indian Journal of Chemistry Section B-Organic Chemistry including Medicinal Chemistry}, volume = {48}, number = {10}, year = {2009}, month = {OCT}, pages = {1424-1430}, publisher = {COUNCIL SCIENTIFIC \& INDUSTRIAL RES}, address = {ANUSANDHAN BHAWAN, 2 RAFI MARG, NEW DELHI, 110001, INDIA}, abstract = {

Copper(II) triflate catalyses efficiently the alpha-halogentation of aryl or alkyl ketones with 1,3-dichloro-5,5{\textquoteright}-dimethyl-hydantoin and N-bromosaccinimde to give the corresponding alpha,alpha-dichloroketones and alpha-bromoketones in high yield with excellent product selectivity.

}, keywords = {Bromination, Catalyst, chlorination, copper (II), Ketone, Lewis acid}, issn = {0376-4699}, author = {Jagdale, Arun R. and Chouthaiwale, Pandurang V. and Sudalai, Arumugam} }