Tetraphenyldiphosphine

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

“…Highly selective introduction of different heteroatom-including functional groups into unsaturated bonds provides a useful tool to synthesize multifunctionalized heteroatom compounds in one portion. − We have revealed that group 16 heteroatom-mixed systems under photoirradiation conditions realize convenient synthesis of a wide variety of group 16 heteroatom compounds, as indicated in Scheme . By using a (PhS) 2 −(PhSe) 2 mixed system, for example, a series of unsaturated compounds such as alkynes, alkenes, allenes, and isocyanides undergo regioselective thioselenation to give the corresponding thioselenated products without formation of the dithiolated adducts or diselenated adducts.…”