Regio- and stereoselective ring-opening of epoxides using organic dithiophosphorus acids as nucleophiles
作者:Zhaoming Li、Zhenghong Zhou、Kangying Li、Lixin Wang、Qilin Zhou、Chuchi Tang
DOI:10.1016/s0040-4039(02)01715-x
日期:2002.10
developed through the ring-opening of epoxides with organic dithiophosphorus acids 1. Highly regio- and stereoselective products, β-hydroxyalkyl dithiophosphates, which were transformed to the corresponding synthetically valuable β-hydroxymercaptans by further reduction, were obtained under mild reaction conditions without any catalyst or promoter. Highly enantioselective ring-opening reaction of cyclohexene
通过有机二硫代磷酸1环氧化物的开环,已经成功开发了一种合成β-羟基硫醇的实用方法。在温和的反应条件下,无需任何催化剂或促进剂,即可得到高度区域和立体选择性的产物,即β-羟烷基二硫代磷酸酯,可通过进一步还原反应转化为相应的合成有价值的β-羟基硫醇。在手性(salen)Ti(IV)配合物的存在下,环己烯环氧化物与1的高度对映选择性开环反应得以实现。