@article { ISI:000279939100026,
	title = {H-beta zeolite: an efficient, reusable catalyst for one-pot synthesis of isatins from anilines},
	journal = {Acta Chimica Slovenica},
	volume = {57},
	number = {2},
	year = {2010},
	month = {JUN},
	pages = {466-469},
	publisher = {SLOVENSKO KEMIJSKO DRUSTVO},
	address = {HAJDRIHOVA 19, LJUBLJANA 1000, SLOVENIA},
	abstract = {<p>We describe a simple and highly efficient procedure for the single-step preparation of isatins from the commercially available anilines using H-beta zeolite as a truly heterogeneous catalyst. H-beta zeolite is readily separated from reaction mixture by simple filtration and reused several times without considerable loss of activity.</p>},
	keywords = {Anilines, H-beta zeolite, heterogeneous catalyst, isatins},
	issn = {1318-0207},
	author = {Raj, I. Victor Paul and Shaikh, Tanveer Mahamadali and Sudalai, Arumugam}
}
@article { ISI:000355925900027,
	title = {Highly efficient regioselective synthesis of pyrroles via a tandem enamine formation-Michael addition-cyclization sequence under catalyst- and solvent-free conditions},
	journal = {Green Chemistry},
	volume = {17},
	number = {6},
	year = {2015},
	month = {APR},
	pages = {3415-3423},
	publisher = {ROYAL SOC CHEMISTRY},
	address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND},
	abstract = {<p>A convenient catalyst-free, three-component procedure was developed for the synthesis of tetrasubstituted pyrroles under solvent-free conditions and in green solvents glycerol, PEG-200 and water. A sequential enamine-formation, Michael addition and intramolecular cyclization of primary amines, 1,3-dicarbonyl compounds and isatin-derived Michael acceptors afforded 3-(1H-pyrrol-3-yl)indolin-2-ones in excellent yields. In this simple one-pot transformation the requirement of column chromatography purification of the products was completely avoided. Besides, the method is highly environmentally benign and atom-economical, and the only side product of this reaction was two molecules of water. A comparative study for the four developed conditions showed that the solvent-free conditions were superior regardless of the nature of the starting materials, and the green solvents were effective for alkyl and benzylamines affording higher yields compared to arylamines. The preliminary in vitro cytotoxic studies of a representative compound against Ehrlich{\textquoteright}s ascites carcinoma (EAC) tumor cells showed significant activity with a CTC50 value of 15.64 mu M.</p>},
	issn = {1463-9262},
	doi = {10.1039/c5gc00365b},
	author = {Vivekanand, Thavaraj and Vinoth, Perumal and Agieshkumar, B. and Sampath, Natarajan and Sudalai, Arumugam and Menendez, Carlos and Sridharan, Vellaisamy}
}
