An efficient one-pot synthesis of symmetrical diselenides or ditellurides from halides with CuO nanopowder/Se0 or Te0/base.
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.
Singh
Devender
D
Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
Deobald
Anna M
AM
Camargo
Leandro R S
LR
Tabarelli
Greice
G
Rodrigues
Oscar E D
OE
Braga
Antonio L
AL