Isomerisations of substituted β-keto-esters
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A mechanism for the isomerisation of ethyl 1-ethoxycarbonyl-2-oxocyclopentylacetate (I) into a cyclohexane β-keto-ester as proceeding through an intermediate bicyclic /gb-diketone (VII) has been considered as an alternative mechanism to one earlier suggested.1 The determination of the structure of the isomerised β-keto-ester as 2, 3-diethoxycarbonylcyclohexanone (V) has provided support for the earlier mechanism.
KeywordsAuthentic Sample Dilute Hydrochloric Acid Sodium Bicarbonate Solution Semicarbazone Mixed Melting Point
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