Regioselective synthesis of 3,3‐diethyl‐4‐(methylene)‐1‐quinol‐2‐ones by an intramolecular microwave assisted heck reaction

A protocol for the intramolecular Heck cyclization to afford 3,3‐diethyl‐4‐(methylene)‐1‐quinol‐2‐ones is described. We observed that the use of microwave irradiation increased the efficiency of the reaction. Several examples are presented which show the versatility of the reaction.