Exceptional effect of nitro substituent on the phosphonation of imines: the first report on phosphonation of imines to α-iminophosphonates and α-(N-phosphorylamino)phosphonates
A novel chemoselective method for the simple phosphonation of imines withH-phosphonate diethyl ester and study of the electronic and orientation effects of the substituents on phosphorylation reaction.
method has been developed for the synthesis of fluorine‐containing α‐amino phosphonates in good yields by a three‐component reaction of fluorinated aromatic aldehydes, anilines, and diethyl phosphate in the presence of a silica‐gel support undermicrowaveirradiation within 10 min. All new compounds are fully characterized by spectral methods and elemental analysis.
CAN Catalyzed One‐Pot Synthesis of α‐Amino Phosphonates from Carbonyl Compounds
作者:K. Ravinder、A. Vijender Reddy、P. Krishnaiah、G. Venkataramana、V. L. Niranjan Reddy、Y. Venkateswarlu
DOI:10.1081/scc-120030755
日期:2004.12.31
Abstract α‐Amino phosphonates are synthesized by three component condensation of aldehydes, amines, and diethyl phosphite using ceric ammonium nitrate at room temperature to afford the corresponding α‐amino phosphonates in high yields. #IICT Communication No. 020214. ‡Dedicated to Professor Goverdhan Mehta on his 60th Birthday.
Catalytic Hydrogenation of α-Iminophosphonates as a Method for the Synthesis of Racemic and Optically Active α-Aminophosphonates
作者:Nataliya S. Goulioukina、Grigorii N. Bondarenko、Sergey E. Lyubimov、Vadim A. Davankov、Konstantin N. Gavrilov、Irina P. Beletskaya
DOI:10.1002/adsc.200700466
日期:2008.2.22
It was shown that the catalytic hydrogenation of α-iminophosphonates by molecular hydrogen can serve as a convenient method for the synthesis of racemic and opticallyactive α-aminophosphonates. Up to 94% ee was achieved in the rhodium-catalyzed enantioselective hydrogenation using chiral ligand (R)-BINAP.