ON WATER: A PRACTICAL AND EFFICIENT SYNTHESIS OF BENZOHETEROCYCLE DERIVATIVES CATALYZED BY NANOCRYSTALLINE COPPER(II) OXIDE

Recyclable CuO nanoparticles provide an efficient, economic, and novel method for the synthesis of quinoxaline, benzoxazine, and benzothiazine. This method provides a wide range of substrate applicability, avoids the use of organic solvents, and gives benzoheterocycles in satisfactory yields.