Studies on Organophosphorus Compounds, 53: A New Procedure for the Synthesis of 1-Alkyl or 1-Aryl-1-hydroxy-2-nitroethylphoshonates under PTC Conditions
A series of dialkyl 1-alkyl- or 1-aryl-1-hydroxy-2-nitroethyl-phosphonates and 1-hydroxy-1-(nitromethyl)alkylphosphonates was prepared by nucleophilic addition of nitromethane to dialkyl acylphosphonates in the presence of potassium carbonate and tetrabutylammonium bromide.
An organocatalytic biomimetic approach to α-aminophosphonates
作者:Dorota Kowalczyk、Łukasz Albrecht
DOI:10.1039/c4cc09477h
日期:——
A novel biomimetic approach to optically active α-aminophosphonates from readily available acylphosphonates employing chiral base catalysis.
一种新颖的仿生方法,利用手性碱催化从易得的酰基膦酸盐制备光学活性的α-氨基膦酸盐。
Serdyukova,A.V. et al., Journal of general chemistry of the USSR, 1974, vol. 44, p. 1220 - 1223
作者:Serdyukova,A.V. et al.
DOI:——
日期:——
10.1021/jacs.4c04129
作者:Lu, Jiaxiang、Yu, Yang、Li, Zhenghua、Luo, Jisheng、Deng, Li
DOI:10.1021/jacs.4c04129
日期:——
highly enantioselective isomerization of α-iminophosphonates enabled by an extraordinarily efficient organocatalyst. This organocatalyst afforded a total turnover number (TON) of 20,000–1,000,000 for a wide range of α-alkyl iminophosphonates. Even at a parts-per-million (ppm) loading, this catalyst achieved a complete reaction in greaterthan 93% enantiomeric excess (ee). Computational studies revealed