A Direct, Modular, and Efficient Construction of the P-C-P Structural Motif through Coupling of Manganese Carbyne Complexes with Phosphines

Easily available carbyne complexes of manganese were used as a source of carbyne fragments in an unconventional synthesis of backbone-substituted diphosphinomethanes and cyclic P-ylides upon coupling with secondary or tertiary phosphines, respectively, followed by demetalation under mild conditions.