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, But) 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).