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Rearrangement ofα -trifluoromethyl-β-dialkylamino-β-fluoroacrylic acid N.N-dialkylamides

Research paper by I. L. Knunyants, E. M. Rokhlin, U. Utebaev, E. I. Mysov

Indexed on: 01 Jan '76Published on: 01 Jan '76Published in: Russian Chemical Bulletin



Abstract

When heated in the presence of a catalytic amount of BF3 etherate,α-trifluoromethyl-β-diethylamino-β-fluoroacrylic acid N, N-dimethylamide is reversibly isomerized toα-trifluoromethyl-β-dimethylamino-β-fluoroacrylic acid N, N-diethylamide. The methyl esters ofα-trifluoromethyl-β-diethylammo-β-fluoroacrylic acid andα-trifluoromethyl-β-phenoxy-β-fluoroacrylic acid N,N-dimethylamide are not isomerized under the same conditions.