The reaction of ‘push-pull’ enamines having a methyl group at the α-position with methyl 3,3,3-trifluoropyruvate was investigated. As a result, unexpected addition of pyruvate to methyl group was found and a set of polyfunctionalized β-dicarbonyl compounds was obtained. Possible mechanism of the reaction is discussed.
‘push-pull’ enamines - methyl 3,3,3-trifluoropyruvate - nucleophilic addition - ene reaction