of (R)-DTBM-SEGPHOS-Pd(OAc)2 catalyst, N-arylation of ortho-tert-butyl-NH-anilides with 4-nitroiodobenzene proceeds with high enantioselectivity (89-95% ee) to give optically active atropisomeric anilides possessing N-C chiral axis. Furthermore, the intramolecular version of the present catalytic asymmetric N-arylation gave atropisomeric lactams with high optical purity (94-96% ee).
在 (R)-DTBM-
SEGPHOS-Pd(OAc)2 催化剂存在下,邻叔丁基-NH-
苯胺与
4-硝基碘苯的 N-芳基化反应以高对映选择性 (89-95% ee) 进行,得到光学具有NC手性轴的活性阻转异构
苯胺。此外,本催化不对称 N-芳基化的分子内形式产生具有高光学纯度 (94-96% ee) 的阻转异构内酰胺。