(Aroylmethyl)triphenylphosphonium salts react with mercury(II) trifluoroacetate with replacement of the labile methylene hydrogen atom by the HgOCOCF3 group to give mercury-containing triphenylphosphonium salts in quantitative yields. Treatment of the mercurated salts with potassium carbonate yields mercury-containing triphenylphosphonium ylides of symmetrical and unsymmetrical structures, which enter Wittig reaction with aromatic aldehydes to form the corresponding mercurated olefins (Z isomers) and triphenylphosphine oxide.
(芳甲基)三苯基
鏻盐与
汞(II)
三氟乙酸盐发生反应,其中易变的甲基氢原子被HgOCOCF3基团取代,生成含
汞的三苯基
鏻盐,产率可达定量。将含
汞的
鏻盐用
碳酸钾处理,能得到具有对称和不对称结构的含
汞三苯基
鏻盐联_aes,这些联_aes能与芳香醛发生Wittig反应,形成相应的含
汞烯烃(Z型异构体)和三苯基氧化
鏻。