The effect of substituents on the P–P and PC bond properties in phosphanylphosphaalkenes

Abstract

A new lithium salt of diphosphane, (iPr₂N)PhP–P(SiMe₃)Li (2), featuring two substituents with distinct electronic characterstics, is reported. A subsequent reaction of the compound 2 with benzophenone was yielded a novel phosphanylphosphaalkene (3). The isolated compound was subsequently treated with nBuLi and PhLi to obtain stable activators (3a and 3b) for the potential polymerization of phosphorus-rich compounds.