分别通过微波辅助将无溶剂的亚磷酸二烷基酯和氧化二苯膦分别添加到由苯甲醛衍生物和伯胺形成的亚胺中,合成了一系列的α-芳基-α-氨基膦酸酯和α-芳基-α-氨基膦氧化物。优化后,将反应性作图,并通过DFT计算评估精细机理。对两种α-氨基膦酸酯进行了X射线研究,揭示了通过NH ... O = P分子间氢桥对形成的外消旋二聚体。
[Et3NH][HSO4]-catalyzed one-pot, solvent-free synthesis and biological evaluation of α-amino phosphonates
作者:Mubarak H. Shaikh、Dnyaneshwar D. Subhedar、Firoz A. Kalam Khan、Jaiprakash N. Sangshetti、Bapurao B. Shingate
DOI:10.1007/s11164-015-2348-z
日期:2016.5
Abstract A series of dimethyl (phenyl(phenylamino)methyl)phosphonates and novel dimethyl ((phenylamino)(2-(prop-2-yn-1-yloxy)phenyl)methyl)phosphonates as potential antifungal agents were synthesized via one-pot, three-component condensation of aldehydes, amines and trimethyl phosphite in solvent-freeconditions using [Et3NH][HSO4] as an efficient, eco-friendly and reusable catalyst. Compared to other
Gold Supported on Hydroxyapatite as a Versatile Multifunctional Catalyst for the Direct Tandem Synthesis of Imines and Oximes
作者:Hao Sun、Fang-Zheng Su、Ji Ni、Yong Cao、He-Yong He、Kang-Nian Fan
DOI:10.1002/anie.200900802
日期:2009.6.2
Two birds with one auric stone: The title system acts as a highly efficient heterogeneous catalyst for the one‐pot tandemsynthesis of imines or oximes from alcohols and the corresponding amines under mild conditions (see scheme; HAP= hydroxyapatite).
Phenylphosphonic acid is an efficient, friendly and reusable heterogeneous catalyst for the synthesis of α-aminophosphonates through a ‘one-pot’ three-component reaction of amines, carbonyl compounds and dialkyl phosphites undersolvent-freeconditions. This methodology illustrates a very simple procedure, with wide applicability, extending the scope to aliphatic and aromatic amines, aliphatic and
A New Protocol for a One-pot Synthesis of α-Amino Phosphonates by Reaction of Imines Prepared In Situ with Trialkylphosphites
作者:Mohammad R. Saidi、Najmedin Azizi
DOI:10.1055/s-2002-32957
日期:——
Imines prepared in situ by reaction of aldehydes and ketones with primary amines in ethereal solution of LiClO4 react readily at ambient temperature with trialkylphosphite to give high yields of α-amino phosphonates.