An efficient one-pot microwave assisted synthesis of dibenzoazepinones

Microwave assisted one-pot synthesis of substituted 5H-dibenzo[b,d]azepin-6(7H)-ones from 2-(2-bromophenyl)acetic acid esters and 2-aminophenyl boronates has been described. This approach gives direct access to seven membered lactams with a shorter cycle time of synthesis and high yields.