The preparations and decompositions of some chloroacetyl-transition metal derivatives

The reactions of ClCH2COCl with NaM(CO)3C5H5 (M = Cr, Mo, W), NaM'(CO)5 M' = Mn, Re), NaFe(CO)2C5H5, (Ph3P)4Pt and Cl(CO)(Ph3P)2Ir were examined. The chloroacetylmetal derivatives, C5H5(CO)3MCOCH2Cl (M = Mo, W), C5H5(CO)2FeCOCH2Cl, and (CO)5MnCOCH2Cl, were isolated and their thermal and photochemical decompositions studied. The last complex decomposes to produce Mn(CO)5Cl, CO, and CH4, whereas the others yield the corresponding metal chlorides and ketene via [beta]-chloride elimination. The Pt and Ir chloroacetyl complexes probably form and decompose under the reaction conditions to give the metal chloride complexes as the only isolable products.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/23551/1/0000510.pd