reaction of 3-chloroallyltrimethylsilane (1) with acid chloride. The ketone was converted into αβ-unsaturated epoxide (3) regioselectively in good yield via reduction with NaBH4 or LiAlH4 followed by treatment with NaOH. Treatment with methyl lithium instead of reduction gave homologous epoxide (5).
由3-
氯烯丙基三甲基
硅烷(1)与酰
氯反应合成α-
氯-βγ-不饱和酮(2)。通过用NaBH 4或LiAlH 4还原,然后用NaOH处理,将酮以良好的产率选择性地转化为αβ-不饱和
环氧化物(3)。用
甲基锂而不是还原的处理得到同源的
环氧化物(5)。