Preparation of acetoacetarylamides

Details Preparation of acetoacetarylamides Preparation of acetoacetarylamides

C - Chemistry, Metallurgy

07

C

C07C 235/74 (2006.01) C07C 231/04 (2006.01)

Patent

CA 2118379

A process for preparing acetoacetarylamides of the formula I (see formula I) where R1 and R2 are identical or different alkyl radicals, 1 and m are each 0, 1 or 2, and n is 0 or 1, by addition of diketene to the appropriate arylamine by continuously reacting the arylamine with diketene in the presence of a mixture of water and of a (C1-C4)-alkanol at temperatures from 60°C to 100°C in the course of from 0.1 to 10 min.

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