Preparation of .alpha.-keto carboxyamides

C - Chemistry – Metallurgy – 07 – C

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C07C 59/185 (2006.01) C07C 51/06 (2006.01)

Patent

CA 1069933

ABSTRACT OF THE DISCLOSURE ? -keto carboxamides of the general formula : Image where R represents an aliphatic aromatic, aralkyl, alicyclic or heterocyclic radical,which may or may not be substituted, and Image is a residue derived from secondary or tertiary aliphatic or aromatic alcohols forming carbocations and selected from the group comprising : tertiary pentyl alcohol Image cyclohexanol Image and benzyl alcohol Image are prepared by condensing the corresponding secondary or tertiary alcohols with cyanhydrins. ? -keto-carboxylic acids of the formula R-CO-COOH, are prepared by hydrolysis of said carboxamides.

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