Preparation of acetoacetarylamides
AssigneeHoechst Aktiengesellschaft
InventorsKarl E. Mack, Michael Bohusch
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Abstract
A process for preparing acetoacetarylamides of the formula I ##STR1## where R.sup.1 and R.sup.2 are identical or different alkyl radicals, l and m are each 0, 1 or 2, and 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 (C.sub.1 -C.sub.4)-alkanol at temperatures from 60.degree. C. to 100.degree. C. in the course of from 0.1 to 10 min.
Claims21
A process for preparing acetoacetarylamides of the formula I ##STR3## where R.sup.1 and R.sup.2 are identical or different alkyl radicals, l 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 (C.sub.1 -C.sub.4)-alkanol at temperatures from 60.degree. C. to 100.degree. C. in the course of from 0.1 to 10 min.
Dependencies are inferred from the claim text.