作者:Zhiming Zhou、Weizhe Xue
DOI:10.1016/j.jorganchem.2008.12.021
日期:2009.3
Manganese-catalyzed homo-coupling of aryl magnesium chlorides to give biphenyls was successfully achieved using manganese chloride as catalyst. A variety of aryl magnesium chlorides were efficiently converted into the corresponding symmetrical biaryls using 10 mol% MnCl2 as catalyst in the presence of a stoichiometric amount of 1,2-dichloroethane. Since the aryl chlorides, from which the Grignard reagents
使用氯化锰作为催化剂,成功实现了锰催化的芳基氯化镁的均相偶联生成联苯。在化学计量的1,2-二氯乙烷存在下,使用10 mol%MnCl 2作为催化剂,可以将各种芳基氯化镁有效地转化为相应的对称联芳基。由于制备格氏试剂的芳基氯化物比相应的溴化物和碘化物便宜且容易获得,因此该方法应成为制备对称联芳基的首选方法。