H. Adams et al., SYNTHESES OF ACYLOXY CARBENE COMPLEXES M(SNPH(3))(CO)(N)(=C(OCOR)PH)(ETA-C5H5) (M=MO,W, N=2, R=ME M=FE, RU, N=1, R=ME, PH, BU(T)) AND X-RAYCRYSTAL-STRUCTURES OF FE(SNPH(3))(CO)(=C(OCOR)PH)(ETA-C5H5) (R=ME, PH), Journal of the Chemical Society, Chemical Communications, (15), 1995, pp. 1511-1512
Treatment of [M(SnPh(3))(COPh)(CO)(n)(eta-C5H5)](-) (M = Fe, Ru, n = 1
; M = Mo, W, n = 2) with acid chlorides R(1)COCl affords carbenes [M(S
nPh(3))(CO)(n){C(OCOR(1))Ph}(eta-C5H5)], which in the case of the iron
and ruthenium derivatives are isolable as unusually stable crystallin
e solids and which react with sources of thiolate to form the new thio
carbene complexes M(SnPh(3))(CO)(n){C(SR(2))Ph}(eta-C5H5).