Synthesis and reactivity of ruthenium hydride complexes of chelating

Organometallics 1991, 10,1444-1450

1444

Synthesis and Reactivity of Ruthenium Hydride Complexes of Chelating Triphosphines. 5.l Reactions of Acetylenes with RuHCI(Cyttp) and RuH,(Cyttp) (Cyttp = C6H5P(CH2CH2CH2P(c-c6H11 )2)2) Guochen Jia' and Devon W. Meek? Department of Chemlstw, The Ohio State Universky, 140 West 18th Avenue, Columbus, Ohio 43210 Received June 22, 1990

Treatment of RuHCl(Cyttp) with PhC=C-CECPh in benzene produced syn,mer-RuC1(q3in dichloromethane or PhC,CHPh)(Cyttp), which isomerizes into anti,ner-RuC1(q3-PhC3CHPh)(Cyttp) methanol. Reaction of RuHCl(Cyttp) with Me02C=C02Me yielded RuC1(Me02CC=CHC02Me)(Cyttp). Acetylide complexes RuCl(C