| abstract |
The invention relates to a continuous method for producing amides of aromatic carboxylic acids by reacting at least one carbonic acid ester of formula (I) R 3 —OOOR 4 , wherein R 3 represents an optionally substituted aromatic hydrocarbon group with 5 to 100 carbon atoms and R 4 represents a hydrocarbon group with 1 to 30 carbon atoms, with at least one amine of formula (II) HNR 1 R 2 , wherein R 1 and R 2 independently represent hydrogen or a hydrocarbon group with 1 to 100 C atoms, in a reaction tube the longitudinal axis of which extends in the direction of propagation of the microwaves of a monomode microwave applicator, under microwave irradiation to form carboxamide. |