Sodium hydrogen telluride as a useful nucleophilic reagent for the cleavage of epoxides and of quaternary ammonium salts
作者:Derek H.R. Barton、Abdelwaheb Fekih、Xavier Lusinchi
DOI:10.1016/s0040-4039(00)95051-2
日期:1985.1
Sodium hydrogen telluride opens many epoxides cleanly by an SN2 process to give telluro-alcohols, which by reduction with nickel boride afford alcohols. An intermediate telluro-alcohol was converted to olefin in high yield by treatment with -toluene-sulphonyl chloride in pyridine. Quaternary ammonium salt are also cleaved efficiently by sodium hydrogen telluride.
碲化氢钠通过SN 2工艺干净地打开许多环氧化物,得到碲醇,通过用硼化镍还原可得到醇。通过在吡啶中用-甲苯-磺酰氯处理,将中间体碲醇以高产率转化为烯烃。季铵盐也可以被碲化氢钠有效地裂解。