Reactions of (dimethylamino)phenylsulfoxonium methylide with triphenylvinylphosphonium salts gave the corresponding cyclopropyltriphenylphosphonium salts (E-form) in high yields, when 1,8-diazabicyclo[5.4.0]undec-7-ene was used as a base. Reactions of cyclopropyltriphenylphosphonium salts with sodium hydride in the presence of tris[2-(2-methoxyethoxy)ethyl]amine afforded the corresponding ylides, which
当使用
1,8-二氮杂双环[5.4.0]十一碳-7-烯作为碱时,(
二甲氨基)苯基亚砜与三苯基
乙烯基鏻盐的反应以高产率得到相应的环丙基三苯基
鏻盐(E型)。在
三[2-(2-甲氧基乙氧基)乙基]胺存在下,环丙基三苯基
鏻盐与氢化
钠的反应得到相应的叶立德,其进一步与醛反应以高产率得到亚烷基
环丙烷。