An Efficient One-Pot Synthesis of Symmetrical Diselenides or Ditellurides from Halides with CuO Nanopowder/Se-0 or Te-0/Base

[摘要]：A CuO nanopowder-catalyzed coupling reaction of aryl, alkyl, and heteroaryl iodides with elemental selenium and tellurium takes place in the presence of KOH at 90 degrees C In DMSO. A wide range of substituted symmetrical diselenides and ditellurides were afforded with good to excellent yields.

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