Method of synthesis of phosphinic acids based on hypophosphites: VIII. Synthesis of α-aminoalkylphenethylphosphinic acids
作者:M. E. Dmitriev、V. V. Ragulin
DOI:10.1134/s107036321109009x
日期:2011.9
type reaction of stepwise addition of the intermediately forming silyl esters of trivalent phosphorus to different unsaturated compounds. A procedure was developed of the synthesis of α-aminoalkylphenethylphosphinic acids. Bis-(trimethylsilyl)phenethylphosphonite formed as a result of the addition of bis(trimethylsilyl)hypophosphite to styrene in situ was added without isolation from the reaction mixture
基于次磷酸盐的双Arbuzov重排方法的发展,通过逐步将中间形成的三价磷的甲硅烷基酯添加到不同的不饱和化合物中的Michael-Pudovik型反应,可以一锅形成两个不对称的磷-碳键。开发了α-氨基烷基苯乙基次膦酸的合成方法。双(三甲基硅烷基)亚磷酸酯是由于将双(三甲基硅烷基)亚磷酸酯原位添加到苯乙烯中而形成的将其不从反应混合物中分离地加入到由苄胺或二苯甲胺和各种醛初步获得的席夫碱中。随后通过氢化或酸性水解除去N-保护基团得到许多新的α-氨基烷基苯乙基次膦酸。