Pd(OAc)2-catalyzed macrocyclization of 1,2-diazonaphthoquinones with cyclic ethers.

Pd(OAc)2 was found to be an efficient catalyst for the macrocyclization of 1,2-diazonaphthoquinones and cyclic ethers. This transformation serves as an efficient method for the synthesis of protected 1,2-naphthalenediols.