Structure and reactions of benzo-4-diphenylphosphino-2-phenyl-1,3,2-dioxaborinane

The crystal structure of 5,6‐benzo‐4‐diphenylphosphino‐2‐phenyl‐1,3,2‐dioxaborinane 1 indicates the occurrence of an interaction between the π‐systems of the 1,3,2‐dioxaborinane ring and the appropriate phenyl group of the diphenylphosphino group. Complexes of compound 1 with PtCl2, PdCl2, and Cul were synthesized. Compound 1 and its complexes are readily hydrolyzed in solution to give diphenylphosphine and its corresponding complexes (NMR).