PREPARATION OF ACETOACETARYLAMIDES

摘要

A process for preparing acetoacetarylamides of the formula I <IMG> 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.degree.C to 100.degree.C in the course of from 0.1 to 10 min.