ORGANOTITANIUM OXIDES AS LEWIS ACIDIC SUPPORTS OF METAL-CARBONYL SPECIES - E(5))(3)(MU-O)(3)ME)((MU-OC)M(CO)2(ETA(5)-C5H5))2] (M=MO, W)

Reaction of [{Ti(eta(5)-C(5)Me(5))(mu-O)}(3)(mu(3)CH)] 1 with [M(eta(5 )-C5H5)(CO)(3)H] (M = Mo, W) leads to the formation of Lewis acid carb onyl adducts ))(3)(mu-O)(3)Me}{mu-OC)M(CO)(2)(eta(5)-C5H5)}(2)] 4, 5 s howing the transformation of the Cls-methylidyne group into a Me group through the mu-methylene intermediates (3)(mu-O)(3)(mu-CH2)}(mu-OC)M( CO)(2)(eta(5)-C5H5)] 2, 3.