6-Dimethylaminopentafulvene as a Lewis Base Component in Frustrated Lewis Pairs: Reversible Carbon–Carbon Coupling in FLP Chemistry

The strongly electrophilic boranes RB(C6F5)2 form frustrated Lewis pairs with an aminofulvene derivative. The new C/B FLPs undergo typical cooperative 1,2-addition reactions to alkynes with carbon–carbon bond formation.强亲电硼烷RB(C6F5)2可与氨基富烯衍生物形成受阻路易斯对（frustrated Lewis pairs，FLP）。新型碳/硼型FLPs可与炔烃发生典型的协同1,2-加成反应，同时生成碳-碳键。