@article { ISI:000286995800020,
	title = {Synthesis of tetrahydro-5-azaindoles and 5-azaindoles using pictet-spengler reaction-appreciable difference in products using different acid catalysts},
	journal = {Tetrahedron},
	volume = {67},
	number = {5},
	year = {2011},
	month = {FEB},
	pages = {936-942},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>Pictet-Spengler condensation of 2-(aryl)-2-(1H-pyrrol-2-yl)ethanamines using conventional acid catalysts like TMSCl or TFA resulted in the formation of substituted 5-azaindoles involving a tandem one pot four steps reaction sequence. By contrast use of glacial acetic acid furnished the targeted tetrahydro-5-azaindoles in diastereoselective manner. These were readily dehydrogenated to 5-azaindoles. (C) 2010 Elsevier Ltd. All rights reserved.</p>},
	keywords = {2-(Aryl)-2-(1H-pyrrol-2-yl)ethanamines, 4, 7-Disubstituted-5-azaindoles, 7-Disubstituted-tetrahydro-5-azaindoles, Diastereoselective Pictet-Spengler reaction},
	issn = {0040-4020},
	doi = {10.1016/j.tet.2010.12.003},
	author = {Shumaila, Abdullah M. A. and Puranik, Vedavati G. and Kusurkar, Radhika S.}
}
