Lipase-catalyzed dynamic kinetic resolution of dimethyl (1,3-dihydro-2H-isoindol-1-yl)phosphonate
作者:María López-Iglesias、Alicia Arizpe、Francisco J. Sayago、Vicente Gotor、Carlos Cativiela、Vicente Gotor-Fernández
DOI:10.1016/j.tet.2016.02.015
日期:2016.11
A simple dynamic kinetic resolution of dimethyl (1,3-dihydro-2H-isoindol-1-yl)phosphonate has been developed by means of a lipase-catalyzed alkoxycarbonylation reaction. The influence of reaction parameters such as solvent, type and amount of alkoxycarbonylating agent, source and loading of enzyme, substrate concentration, temperature, and reaction time has been studied. The best results were found
(1,3-二氢-2 H-异吲哚-1-基)膦酸二甲酯的简单动态动力学拆分已经通过脂肪酶催化的烷氧羰基化反应开发出来。研究了反应参数的影响,如溶剂,烷氧基羰基化剂的类型和数量,酶的来源和负载量,底物浓度,温度和反应时间。最好的结果在生物催化反应中发现使用南极假丝酵母脂肪酶A型和在30℃下在甲苯烯丙基3-甲氧基苯基碳酸酯,得到(ř)-烯丙基氨基甲酸酯,分离产率为58%,对映体过量为96%。值得注意的是,该方法不需要外部助剂来使慢反应的氨基膦酸酯对映体消旋,并且在温和的反应条件下进行。