作者:Wei-Yuan Huang、Li-Qing Hu、Wen-Zhe Ge
DOI:10.1016/s0022-1139(00)82719-0
日期:1989.6
Dithionite initiated addition of perfluoroalkyl iodide to an olefinic double bond proved to be an efficient method for the introduction of a perfluoroalkyl group to a steroid side chain. Starting from 3α, 6α - dihydroxy- 5β - cholanic acid, the synthesis of cholesterol and its analogs with a partially fluorinated side-chain (6a, Rf = CF2CF(CF3)2; 6b, Rf = (CF2)2CF(CF3)2; 6c, Rf = (CF2)3CF3; 6d, Rf
连二亚硫酸盐引发的全氟烷基碘加成至烯烃双键被证明是将全氟烷基引入甾族侧链的有效方法。从3α,6α-二羟基-5β-胆酸开始,合成具有部分氟化侧链的胆固醇及其类似物(6a,R f = CF 2 CF(CF 3)2 ; 6b,R f =(CF 2)2 CF(CF 3)2 ; 6c,R f =(CF 2)3 CF 3 ; 6d,R f =(CF 2)4 Cl; 6e,Rf =(CF 2)6 Cl; 得到6g,R f=(CF 2)6 H),并以良好的收率获得双固醇(10)。这些化合物不会被某些微生物系统降解。