Kinetics of the Reactions of (Ethoxycarbonyl)methylcobalt Tetracarbonyl with ¹³CO, Ph₃P, Hco(co)₄, and H₂. A Comparison of the Reactivities of Rco(co)₄(R = CH₂COOEt, COOEt, and H) Complexes

While there is evidence for the existence of HCo(CO)//3,**6 there is no information regarding the rate of formation of this compound or analogous alkyl and acylcobalt tricarbonyls. The author also report measurements of the rates of **1**3CO exchange for each of these species. These data provide support for the authors proposed mechanism and furnish fundamental information relevant to the hydroformylation reaction.