1998 年 56 巻 10 号 p. 810-817
A palladium complex coordinated by an iminophosphine ligand was disclosed to be a remarkably active catalyst for the coupling of organostannanes with aryl halides. The mechanistic studies show that the reaction of an alkynylstannane proceeds through a novel catalytic cycle which involves an oxidative addition of the organostannane to a Pd (0) -iminophosphine complex. This oxidative adduct was demonstrated to react with alkynes to give carbostannylation products. The catalyst could also mediate the homocoupling reaction of organostannanes using air or allyl acetate as a mild and easily available oxidant.