An efficient catalyst for the synthesis of ortho-substituted biaryls by the Suzuki cross-coupling: Triphenylphosphine adduct of cyclopalladated ferrocenylimine
作者:Hong Li、Yangjie Wu、Weibo Yan
DOI:10.1016/j.jorganchem.2006.09.023
日期:2006.12
The air and moisture stable triphenylphosphine adduct of cyclopalladatedferrocenylimine 2 has been successfully used in palladium-catalyzed Suzuki cross-coupling for the synthesis of ortho-substituted biaryls in air. In the presence of 0.05 mol% of 2 as catalyst and 3 equivalent of CsF as base in dioxane at 100 °C, ortho-substituted biaryls were synthesized with moderate to high yields in the reactions