Patent ID: 6215024
Filing Date: 2001-04-10
Classification: C07C

Abstract:
A single step process for preparing an amide which comprises reacting an amine having from 1 to 20 carbon atoms an selected form the group consisting of aromatic, aliphatic, carbocyclic and heterocyclic amines with an acylating agent consisting essentially of a carboxylic acid selected from the group consisting of acetic, propionic and butyric acids in a molar ratio of acid to amine of from 3:1 to 10:1 in the presence of reusable natural montmorillionite or a metal ion exchanged montmorillionite clay catalyst in a suitable solvent medium at a temperature in the range 30-160.degree. C. for from 0.02 to 6 hours and recovering the corresponding amides.