@article { ISI:000246431300013,
	title = {Efficient one-pot synthesis of alpha-amino phosphonates catalyzed by bismuth nitrate pentahydrate},
	journal = {Synlett},
	number = {5},
	year = {2007},
	month = {MAR},
	pages = {745-748},
	publisher = {GEORG THIEME VERLAG KG},
	type = {Article},
	address = {RUDIGERSTR 14, D-70469 STUTTGART, GERMANY},
	abstract = {<p>A simple, efficient, and environmentally benign method has been developed for the synthesis of alpha-amino phosphonates through a one-pot reaction of aldehydes with amines and diethyl phosphite in the presence of bismuth nitrate pentahydrate as a catalyst. Some of the major advantages of this protocol are: good yields, the involvement of a less-expensive and non-toxic catalyst, mild and solvent-free reaction conditions and also tolerance towards other functional groups present in the substrates. Eighteen examples are described, highlighting the substrate scope of the reaction.</p>},
	keywords = {aldehydes, alkyl phosphite, alpha-amino phosphonates, amines, bismuth nitrate pentahydrate, synthetic methods},
	issn = {0936-5214},
	doi = {10.1055/s-2007-970762},
	author = {Bhattacharya, Asish K. and Kaur, Tanpreet}
}
@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.}
}
