with either of the halogeno‐B(C6F5)2 reagents 10a,b (hal: Cl, Br) proceeds through addition and rearrangement to give the unsaturated C2‐bridged Hal–P/B Lewis pairs 12a,b. Their reactions with two molar equiv. of a small series of alkynyllithium reagents R–C≡CLi led to the formation of the phosphole derivatives 17 via intramolecular 1,1‐carboboration reaction.
二聚(
丙炔基)膦(9)与卤代B(C 6 F 5)2试剂10a,b(hal:Cl,Br)的反应通过加成和重排进行,得到不饱和的C 2桥连的Hal -P / B刘易斯对12a,b。他们的反应有两个摩尔当量。一小撮炔基
锂试剂R–C≡CLi通过分子内1,1–碳链化反应导致形成了
磷脂衍
生物17。