The synthesis of α-fluoroacrylates and α-bromo-α-fluoroalkenes was achieved in very good yields using aldehydes and ketones, triphenylphosphine, diethylzinc as promoter, and ethyl dibromofluoroacetate or dibromofluoromethane, respectively. A change in the addition sequence was critical in order to obtain exclusively α-fluoroacrylates in good yields.
α-
氟丙烯酸酯和α-
溴-α-
氟烯烃的合成得到了非常好的产率,使用了醛和酮、三苯基
磷、
二乙基锌作为
促进剂,以及乙基
二溴氟乙酸酯或
二溴氟甲烷。改变添加顺序对独占性获得α-
氟丙烯酸酯的高产率至关重要。