Syntheses of acyloxy carbene complexes M(SnPh₃)(CO)_n{C(OCOR)Ph}(η-C₅H₅)(M = Mo,W, n= 2, R = Me; M = Fe, Ru, n= 1, R = Me, Ph, Bu^t) and X-ray crystal structures of Fe(SnPh₃){CO){C(OCOR)Ph}(η-C₅H₅)(R = Me, Ph)

Abstract

Treatment of [M(SnPh3)(COPh)(CO)n(η-C5H5)]–(M = Fe, Ru, n= 1; M = Mo, W, n= 2) with acid chlorides R1COCl affords carbenes [M(SnPh3)(CO)n{C(OCOR1)Ph}(η-C5H5)], which in the case of the iron and ruthenium derivatives are isolable as unusually stable crystalline solids and which react with sources of thiolate to form the new thiocarbene complexes M(SnPh3)(CO)n{C(SR2)Ph}(η-C5 H5).