Abstract
Abstract The cross-coupling reaction of arylboronic acids (1.3 equivs) with aryl methane-sulfonates was carried out in the presence of a nickel(0) catalyst (3 mol%) and K 3 PO 4 ·nH 2 O (3 equivs). The use of toluene as the solvent and the nickel(0)-dppf catalyst prepared from NiCl 2 (dppf) plus dppf with BuLi were recognized to be the most efficient to achieve both high yields and high selectivity. The reaction can be applied to various electron-deficient and -rich aryl methanesulfonates to give high yields.
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