A Novel Catalytic Three-Component Synthesis (Kabachnick-Fields Reaction) of α-Aminophosphonates from Ketones
作者:Elena D. Matveeva、Nikolay S. Zefirov、Tatyana A. Podrugina、Elena V. Tishkovskaya、Larisa G. Tomilova
DOI:10.1055/s-2003-42118
日期:——
A novel and highly convenient catalytic variant of the synthesis of α-aminophosphonates on basis of the Kabachnik-Fields reaction [three-component reaction of ketones, diethylphosphite and either benzylamine (series a) ofammonium carbonate (series b)] in the presence of tetra-tert-butylphthalocyanines has been developed. This method affords α-aminophosphonates in acceptable yields for various ketones
Catalyst-Free Microwave-Assisted Synthesis of α-Aminophosphonates in a Three-Component System: R<sup>1</sup>C(O)R<sup>2</sup>-(EtO)<sub>2</sub>P(O)H-RNH<sub>2</sub>
作者:Maria M. Kabachnik、Elena V. Zobnina、Irina P. Beletskaya
DOI:10.1055/s-2005-868519
日期:——
An effective catalyst-free microwave-assisted synthesis of α-aminophosphonates from ketones in a three-component system was shown. The method affords α-aminophosphonates in high yields from various ketones including natural porphyrine derivatives.
Zirconium(IV) Compounds As Efficient Catalysts for Synthesis of α-Aminophosphonates
作者:Srikant Bhagat、Asit K. Chakraborti
DOI:10.1021/jo8009006
日期:2008.8.1
Zirconium(IV) compounds are reported as excellent catalysts for a three-component one-pot reaction of an amine, an aldehyde or a ketone, and a di/trialkyl/aryl phosphite to form α-aminophosphonates under solvent-free conditions at rt. Among the various zirconiumcompounds, ZrOCl2·8H2O and ZrO(ClO4)2·6H2O were most effective. The reactions were faster with dialkyl/diaryl phosphites than with trialkyl/triaryl
An Extremely Efficient Three-Component Reaction of Aldehydes/Ketones, Amines, and Phosphites (Kabachnik−Fields Reaction) for the Synthesis of α-Aminophosphonates Catalyzed by Magnesium Perchlorate
作者:Srikant Bhagat、Asit K. Chakraborti
DOI:10.1021/jo062140i
日期:2007.2.1
an extremely efficient catalyst for the synthesis of α-aminophosphonates. A three-component reaction (3-CR) of an amine, an aldehyde or a ketone, and a di-/trialkyl phosphite (Kabachnik−Fields reaction) took place in one pot under solvent-free conditions to afford the corresponding α-aminophosphonates in high yields and short times. The use of solvent retards the rate of the reaction and requires a
Amberlite-IR 120 catalyzed three-component synthesis of α-amino phosphonates in one-pot
作者:Asish K. Bhattacharya、Kalpeshkumar C. Rana
DOI:10.1016/j.tetlet.2008.02.102
日期:2008.4
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 α-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