Highly Regioselective Simultaneous Introduction of Phosphino and Seleno Groups into Unsaturated Bonds by the Novel Combination of (Ph2P)2 and (PhSe)2 upon Photoirradiation

A novel combination of tetraphenyldiphosphine and diphenyl diselenide under photoirradiation conditions attains simultaneous introduction of diphenylphosphino and phenylseleno groups into carbon-carbon unsaturated bonds such as terminal alkynes or allenes, regioselectively.