Developing NHC-Iridium Catalysts for the Highly Efficient Enantioselective Intramolecular Hydroamination Reaction

被引:40
作者
Gao, Pengchao [1 ]
Sipos, Gellert [1 ]
Foster, Daven [1 ]
Dorta, Reto [1 ]
机构
[1] Univ Western Australia, Sch Mol Sci, Dept Chem, 35 Stirling Highway, Perth, WA 6009, Australia
基金
澳大利亚研究理事会;
关键词
chiral NHC; iridium; catalysis; hydroamination; N-heterocycles; ASYMMETRIC HYDROAMINATION; UNACTIVATED ALKENES; ALPHA-ARYLATION; COMPLEXES; AMINES; AMINOALKENES; CYCLIZATION; AMIDES; HYDROGENATION; ARYLAMINES;
D O I
10.1021/acscatal.7b02508
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Chiral, cationic NHC-iridium complexes are introduced as catalysts for the intramolecular hydroamination reaction of unactivated aminoalkenes. The catalysts show high activity in the construction of pyrrolidines, which are accessed with excellent optical purity. Enantiomerically enriched piperidines and indolines are also produced, and various functional groups are tolerated with this LTM system. A reaction mechanism is proposed, and a major deactivation pathway of these catalysts is presented and discussed.
引用
收藏
页码:6060 / 6064
页数:5
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