作者:Anne-Marie Le Nocher、Patrick Metzner
DOI:10.1016/s0040-4039(00)60029-1
日期:1992.10
presence of zinc chloride. Deprotonation with LDA leads to Z enethiolates 4 which were S-silylated with trimethylsilyl chloride to give silyl vinyl sulfides 5. Methanolysis of 5 quantitatively affords enethiols 1, devoid of the isomeric thioketones 3.
通过在氯化锌存在下用硫化氢处理二甲基乙缩醛来制备互变异构纯的脂族硫酮3。用LDA去质子化得到Z-烯硫醇盐4,其被三甲基甲硅烷基氯S-甲硅烷基化以得到甲硅烷基乙烯基硫化物5。甲醇5定量提供烯硫醇1,没有异构的硫代酮3。