Development of spirocyclic phosphoramidite-based hybrid diphosphorus ligands for enantioselective iridium-catalyzed hydrogenation of imines
作者:Long-Fei Nan、Xiu-Shuai Chen、Hao Chen、Xin-Hu Hu、Xin-Hong Wang、Xiang-Ping Hu
DOI:10.1039/d2ob01801b
日期:——
successfully applied in the iridium-catalyzed asymmetric hydrogenation of imines. With this newly developed chiral iridium catalytic system, a wide range of imines including sterically hindered ones could be hydrogenated to give the corresponding optically active amines in high yields (up to >99%) and with excellent enantioselectivities (up to >99% ee). The utility of this hydrogenation has been demonstrated
已经开发出带有螺环亚磷酰胺支架的不对称杂化手性二磷配体,并成功应用于亚胺的铱催化不对称氢化。借助这种新开发的手性铱催化系统,包括位阻亚胺在内的多种亚胺可以被氢化,以高产率(高达 >99%)和出色的对映选择性(高达 >99% ee)生成相应的光学活性胺. 这种氢化作用的实用性已通过手性杀真菌剂 ( S )-苯霜灵的制备得到证实。