Transmetallation of an α-lithio-β,β-difluoroenol carbamate with a CuX3Li2 (2LiCl.Cul) produced a vinylcopper reagent that was thermally stable and reacted with activated haloalkanes and acid chlorides in moderate to high yield, extending considerably the scope of building block chemistry available from trifluoroethanol.
α-
硫代-β,β-二
氟烯醇
氨基甲酸酯与CuX 3 Li 2(2LiCl.Cul)的
金属转移产生了
乙烯基铜试剂,该试剂具有热稳定性,并与活化的卤代
烷烃和酰
氯反应,具有中等至高收率,从而大大扩展了应用范围可从
三氟乙醇中获得的基础
化学原料。