A series of bis-carbene Ru-hydride species were prepared and subsequently shown to react with aryl-vinyl-sulfides to give the corresponding biscarbene-alkylidene complexes. The activities of these species for ring-opening metathesis polymerization, ring-closing and cross-metathesis are reported. While these systems are shown to exhibit modest metathesis activities, the reactivity is enhanced in the presence of BCl3.
一系列双卡宾Ru-氢化物物种被制备出来,并随后被证明能够与芳基-乙烯基-硫醚反应,形成相应的双卡宾-烷基亚烯配合物。报道了这些物种在开环重聚合、环闭合和交叉重聚合方面的活性。虽然这些系统表现出适度的重聚合活性,但在BCl3存在下,反应活性得到增强。