作者:Koji Takaku、Hiroshi Shinokubo、Koichiro Oshima
DOI:10.1016/s0040-4039(98)00271-8
日期:1998.4
The reaction of 1-triphenylsilyl-2-propenyllithium with ethylene oxide afforded an adduct, a lithium salt of 3-triphenylsilyl-4-penten-1-ol, which regenerated an allyllithium species, 3-lithio-5-triphenylsiloxy-1-pentene via anionic rearrangement of a silyl group from carbon to oxide in the presence of HMPA. This allylic lithium compound could be trapped in one-pot by various electrophiles to provide
1-三苯基甲硅烷基-2-丙烯基锂与环氧乙烷的反应得到加合物,即3-三苯基甲硅烷基-4-戊烯-1-醇的锂盐,其再生了烯丙基锂物种3-硫代-5-三苯基甲硅烷氧基-1-戊烯通过在HMPA存在下将甲硅烷基的基团从碳到氧化物进行阴离子重排。该烯丙基锂化合物可以被各种亲电试剂一锅捕获,以提供相应的加合物作为区域异构体混合物。将环氧化合物,醛和HMPA连续添加到1,3-双(三苯基甲硅烷基)-2-丙烯基锂中,可以在一锅中以高区域选择性得到1,4-二醇单甲硅烷基醚。