Microwave‐Accelerated Dimroth Rearrangement for the Synthesis of 4‐Anilino‐6‐nitroquinazolines. Application to an Efficient Synthesis of a Microtubule Destabilizing Agent.

A variety of substituted anilines is applied to the reaction with cyanophenyl dimethylimidoformamide substrates (I) and (VIII) under microwave-assisted conditions and atmospheric pressure to afford the desired 4-anilinoquinazolines (III) or (IX).