A palladium–iminophosphine complex was found to catalyze the homocoupling reaction of alkynylstannanes using allyl acetate as an oxidant, whereas aryl- and alkenylstannanes were oxidatively homocoupled with air.
An iminophosphine-palladium complex has been successfully utilized as a catalyst for the oxidative homocoupling reaction of organostannanes using air as an oxidant.