biaryl atropisomers was established using a novel BINOL-derived phosphoramidite as chiral ligand. A broad range of atropisomeric biaryls were obtained in good efficiency and the practicality of this approach was verified by versatile transformations towards axially chiral ligands, catalysts, and other functional atropisomers. This set of catalytic systems successfully inhibited the routine 1,2 addition
使用新型 BINOL 衍生的亚
磷酰胺作为手性
配体,建立了第一个
铜催化的偶氮
萘和芳基
硼酸之间用于构建联芳基阻转异构体的阻转选择性迈克尔型加成。以良好的效率获得了广泛的阻转异构联芳基化合物,该方法的实用性通过向轴向手性
配体、催化剂和其他功能性阻转异构体的通用转化得到验证。这套催化体系成功地抑制了常规的 1,2 加成并促进了芳基-芳基手性轴的形成。同时,该策略绕过了氧化剂的使用以及过渡
金属介导的
芳烃 CH 与作为芳基化对应物的芳基
硼酸偶联所需的苛刻条件,