摘要：

That cobalt hydrotetracarbonyl adds to olefins to form alkylcobalt tetracarbonyls, as the first step in the hydroformylation reaction, has been demonstrated by isolation of the resulting products as their monotriphenylphosphine adducts. Addition to 1-pentene gives approximately the same isomer distribution at 0° that it does at elevated temperatures, whereas the directions of addition to isobutylene and to methyl acrylate change with temperature. The addition is reversible. An investigation of the effect of CO on the addition reaction, on the subsequent reduction of the adduct, and on olefin isomerization led to the conclusion that these reactions involve coordinately unsaturated species. A unified mechanism is proposed for the hydroformylation reaction and the concurrent olefin isomerization.

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