Abstract Treatment of 3‐(2‐bromophenyl)‐4‐silylsydnones 1 with n‐butyllithium effects rearrangement to the corresponding ortho‐silylphenylsydnone anions 2, which can be trapped with electrophiles to afford 4‐substituted ortho‐silylphenylsydnones 4a–h in 41–89% yield.
摘要 用
正丁基锂处理 3-(2-bromophenyl)-4-silylsydnones 1 会导致重排为相应的 ortho-silylphenylsydnone 阴离子 2,后者可以被亲电试剂捕获,在 41-中得到 4-取代的邻甲
硅烷基苯基sydnones 4a-h 89% 的收率。