yo -machi, Nagasaki 852, Japan The hydridoruthenium(1i) complex [RuCI(CO)H (PPh,),] (1 ) reacted easily with methyl acrylate and N,N-dimethylacrylamide to give the corresponding insertion products, [Ru{CH,CH,C(O) -OMe}CI(CO)(PPh,),] * It was erroneous that in ref. 26, (8) was ascribed to a structure in which the two PPh, ligands were located at trans positions to each other. The 'H n.m.r. data of (8) in ref. 26 are revised in Table 2, owing to the correction of calibration.

Organoruthenium?l) Complexes Formed by Insertion Reactions of Some Vinyl Compounds and Conjugated Dienes into a Hydrido ‐ Ruthenium Bond.

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