Ruthenium-Catalyzed Reactions of Acyclic α,β-Enones with Olefins and Their Reaction Mechanisms
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The reaction of 4,4-dimethyl-5-phenyl-4-peneten-3-one with styrene (2) using Ru(H)<SUB>2</SUB>(CO)(PPh<SUB>3</SUB>)<SUB>3</SUB> as the catalyst gave the stereochemically retained product. In the case of 2,2-dimethyl-4-hexen-3-one, the stereochemically inverted branched product was obtained. These results are consistent with two different reaction pathways operating, i.e. one involving a direct C-H bond cleavage and the other, a pathway involving hydrometallation.
- Chemistry Letters
Chemistry Letters 1998(9), 893-894, 1998-09-05
The Chemical Society of Japan