Aluminum-catalyzed efficient synthesis of anilides by the acylation of aryl amines under ultrasonic conditions

Abstract Substituted aryl amines undergo smooth acylation with different acyl chlorides to give anilides under sonic condition (35 kHz, 25°C) in the presence of catalytic amounts of aluminum metal powder in acetonitrile as solvent. All the reactions go to completion within 4 min and give the products in high yields (85–97%).