Process for the production of N,N-disubstituted carboxylic amides

Process for the production of N,N-disubstituted carboxylic amides of the formula ##EQU4## wherein R.sub.1 is C.sub.2 - C.sub.18 straight or branched alkyl, a halogen-substituted alkyl, a phenyl-substituted alkyl, phenyl, chloro- dichloro-substituted phenyl, nitro- dinitro-substituted phenyl, trimethoxyphenyl, six-membered unsaturated heterocyclic having a nitrogen atom;

• R.sub.2 and R.sub.3 are identical or different, C.sub.1 - C.sub.4 straight or branched alkyl, phenyl or R.sub.2 and R.sub.3 form together a six-membered heterocycle with a nitrogen atom and an oxygen atom, characterized by reacting a carboxylic acid of the formula ##EQU5## wherein R.sub.1 has the same meaning as above, with a carbamoyl chloride of the formula ##EQU6## wherein R.sub.2 and R.sub.3 have the same meaning as above, at a temperature of 100.degree. - 300.degree.C., and separating the thus-formed N,N-disubstituted carboxylic amide from the reaction mixture.