A facile one-pot cyanation of primary and secondary alcohols. Application of some new Mitsunobu reagents
作者:Tetsuto Tsunoda、Kaori Uemoto、Chisato Nagino、Megumi Kawamura、Hiroto Kaku、Shô Itô
DOI:10.1016/s0040-4039(99)01509-9
日期:1999.10
cyanomethylenetrimethylphosphorane (CMMP), mediated the direct transformation of primary and secondary alcohols into the corresponding nitriles in the presence of acetone cyanohydrin. This type of cyanation process can convert 3β-cholestanol to 3α-cyanocholestane in high yield with complete Walden inversion.
一些新的Mitsunobu试剂,特别是N,N,N',N'-四甲基偶氮二甲酰胺(TMAD)-三丁基膦(TBP)和氰基亚甲基三甲基磷烷(CMMP),在丙酮氰醇存在下介导伯醇和仲醇直接转化为相应的腈。 。这类氰化过程可将Walter完全倒置,以高收率将3β-胆甾醇转化为3α-氰基胆甾烷。