ChemInform Abstract: Ultrasound‐Assisted Ullmann Reaction of Alkyl and Aromatic Amines with Substituted Benzoic Acids Using Copper Catalyst.

Abstract

A simple, efficient, economic and environmentally friendly method for the Ullmann condensation of substituted benzoic acids with amines furnishing anthranilic acid derivatives such as (III), (V) and (VII) (16 examples in all) is developed.