AN EFFICIENT ARYLATION OF BENZOAZOLES WITH ARYL BROMIDES BY A PRACTICAL PALLADIUM-COPPER COCATALYTIC SYSTEM

[摘要]：A practical, efficient Pd(OAc)(2)/Cu(II)/PPh(3) cocatalytic system has been developed. With only 1 mol% Pd(OAc)(2), 20 mol% copper(II) salt, and 0.5 equiv of inexpensive PPh(3) as ligand, the direct arylation of benzoazoles with aryl bromides could be performed smoothly in mild condition, affording the desired arylated benzoazoles in good yields (75-93%).

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