Y. Kobayashi et R. Mizojiri, NICKEL-CATALYZED COUPLING REACTION OF LITHIUM ORGANOBORATES AND ARYL MESYLATES POSSESSING AN ELECTRON-WITHDRAWING GROUP, Tetrahedron letters, 37(47), 1996, pp. 8531-8534
In the presence of NiCl2(PPh(3))(2) as catalyst, p-methoxycarbonylphen
y mesylate (5) and tosylate (6) react with lithium arylborates 4 (Ar =
2-furyl; Ph, p-Me-Ph, p-MeO-Ph) at room temperature to afford the cou
pling products in high yields. Similarly. mesylates 9-11 coupled with
these berates 4 efficiently. Copyright (C) 1996 Elsevier Science Ltd