Aerobic Oxidative Coupling of 2-Naphthol Derivatives Catalyzed by a Copper-Amine Complex without Solvent

摘要

Aerobic oxidative coupling of naphthols catalyzed by a copper-amine complex was found to proceed without solvent in high efficacy. The present reaction was applied to a practical synthesis of 1,1'-binaphthalene-2,2'-diol on multi-gram scale.