摘要:
The metallacyclopentadiene complex C5Me5-(PPh3)(Cl)RuCH=CHCH=CH (1) was found to catalyze the linear coupling reaction of acetylene and acrylonitrile to give predominantly 2(E),4(Z), 6-heptatrienenitile (3; TON = 15, 85% selectivity). The coupling reaction is proposed to occur via an initial PPh3 dissociation from 1 and the subsequent insertion of acrylonitrile.