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 cyclopalladated ferrocenylimine 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
环钯化的二茂铁基亚胺2的空气和湿气稳定的三苯基膦加合物已成功用于钯催化的Suzuki交叉偶联中,以在空气中合成邻位取代的联芳基。在100°C下在二恶烷中0.05摩尔%的2作为催化剂和3当量的CsF作为碱存在下,在2-甲氧基-1-萘基硼酸与芳基的反应中以中等至高的产率合成邻位取代的联芳基得到卤化物和14个新的邻位取代的联芳基并进行了表征。