t-BuOH Solvent for CuSeO3 Catalyzed Csp(2)-Se Cross-coupling of Diaryldiselenide with Arylhalides and Boronic acids

摘要

Formation of carbon-selenium bond by Csp(2)-Se cross-coupling using diaryldiselenides and arylhalides are very few in literature. Herein we report CuSeO3.2H(2)O as an efficient catalyst for direct Csp(2)-Se cross-coupling of diaryldiselenides with aryl iodides, bromides and aryl boronic acids. The reaction is performed at low temperature (70 degrees C) in tert-butanol solvent in absence of ligand. Arylboronic acids are more reactive than aryliodides and bromides.