A SERIES OF WELL-DEFINED METATHESIS CATALYSTS - SYNTHESIS OF [RUCL2(=CHR')(PR(3))(2)] AND ITS REACTIONS

Substantially better initiators and therefore considerably more reactive than complexes of type A, the novel metathesis catalysts B are easily prepared by the reaction of [RuCl2(PPh3)3] with the appropriate diazoalkanes and subsequent phosphane exchange. While the PPh3 derivatives are excellent catalysts for living ROMP of norbornene, the complex with R = Cy, R′ = Ph is also a very efficient catalyst for the metathesis of acyclic alkenes. (Figure Presented.) Copyright © 1995 by VCH Verlagsgesellschaft mbH, Germany