论文信息 - 2-Methyl-4-alkenyl-2,3-dihydrofurans by cleavage of the metal–carbon double bond in α,β-unsaturated 2-oxacyclopentylidene pentacarbonyl chromium complexes

2-Methyl-4-alkenyl-2,3-dihydrofurans by cleavage of the metal–carbon double bond in α,β-unsaturated 2-oxacyclopentylidene pentacarbonyl chromium complexes

The reaction between the complex (CO)5CrC[graphic omitted] 1 and aliphatic aldehydes bearing α-H atoms, in the presence of dimethylamine hydrochloride and potassium carbonate, leads directly to 1,3-dienes 3a-f; in one case the formation of the intermediate 5 can be demonstrated.

A. Papagni | L. Lattuada | E. Licandro | S. Maiorana*

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