A modified Pd-catalyzed method of forming aryl- and heteroarylboron species and a two-step, one-pot borylation/Suzuki-Miyaura cross coupling using the atom economical tetrahydroxydiboron (bis-boronic acid, BBA) is reported. By using ethylene glycol as an additive, the new method results in increased yields, lower BBA loading, faster reaction times, and a broader reaction scope, including previously
报道了一种修饰的Pd催化的形成芳基和杂芳基
硼物种的方法,以及使用经济的
四羟基二硼原子(双
硼酸,
BBA)进行两步一锅的
硼化/铃木-宫浦交叉偶联的方法。通过使用
乙二醇作为添加剂,新方法可提高收率,降低
BBA负载量,缩短反应时间并扩大反应范围,包括以前存在问题的底物,例如
杂环化合物。