@article { ISI:000255318800025,
	title = {Amberlite-IR 120 catalyzed three-component synthesis of alpha-amino phosphonates in one-pot},
	journal = {Tetrahedron Letters},
	volume = {49},
	number = {16},
	year = {2008},
	month = {APR},
	pages = {2598-2601},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	type = {Article},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>A simple, efficient, and environmentally benign method for a three-component reaction of an amine, an aldehyde or a ketone, and diethyl phosphite catalyzed by Amberlite-IR 120 resin has been developed to afford alpha-amino phosphonates in high yields and short reaction times under solvent-free reaction conditions. The major advantages of the present method are good yields, inexpensive, ecofriendly and reusable catalyst, mild and solvent-free reaction conditions and tolerance towards various functionalities present in the substrates. (c) 2008 Elsevier Ltd. All rights reserved.</p>},
	keywords = {aldehydes, alkyl phosphite, alpha-amino phosphonates, amines, ion-exchange resin, multi-component reaction},
	issn = {0040-4039},
	doi = {10.1016/j.tetlet.2008.02.102},
	author = {Bhattacharya, Asish K. and Rana, Kalpeshkumar C.}
}
@article { ISI:000259104700034,
	title = {Multi-component carbon-carbon bond forming Mannich reaction catalyzed by yttria-zirconia based Lewis acid},
	journal = {Catalysis Communications},
	volume = {9},
	number = {14},
	year = {2008},
	month = {AUG},
	pages = {2445-2448},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>A direct three component Mannich-type reaction of aldehyde, amine, and ketone (without silyl enolates) were efficiently catalyzed by yttria-zirconia based strong Lewis acid in aqueous acetonitrile. (C) 2008 Elsevier B.V. All rights reserved.</p>},
	keywords = {beta-amino carbonyls, Mannich reaction, multi-component reaction, yttria-zirconia based Lewis acid},
	issn = {1566-7367},
	doi = {10.1016/j.catcom.2008.06.011},
	author = {Ramalingam, S. and Kumar, Pradeep}
}
