α-Fluorochalcones 4 can be synthesized by the Wittig reaction via α-fluoro substituted ylide 3, affoding a general method for the stereoselective synthesis of (E)-α-fluoro-α,β-unsaturated compounds 4.
通过Wittig反应,可通过β-
氟代亚基3合成β-
氟查尔酮4,为(E)-β-
氟-α,β-不饱和化合物4的立体选择性合成提供了一种通用方法。