Insertion reactions, of olefins

M(tj-CsH5)2 fragment with 7r-acceptor and -donor ligands and have emphasized the orbital interactions with conformational consequences, e.g., for carbene and olefin ligands. They have also discussed insertion reactions of olefins and carbon monoxide coordinated to this metal fragment 134). 

Insertion reactions of olefins with acylmetal complexes are also followed by jS-metal hydride eliminations. Diethylketone, for example, is a by product in the hydroformulation of ethylene and is probably formed by a final hydrogenation of the vinyl group. Diethylketone is a major product if the hydrogen used is limited . Intramolecular versions of the reaction proceed catalytically and stoichiometrically ... 

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