Enantioselective Intermolecular Radical Amidation and Amination of Benzylic C-H Bonds via Dual Copper and Photocatalysis

被引:38
作者
Chen, Xuemeng [1 ]
Lian, Zhong [2 ,3 ]
Kramer, Soren [1 ]
机构
[1] Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark
[2] Sichuan Univ, West China Hosp, State Key Lab Biotherapy & Canc Ctr, Dept Dermatol, Chengdu, Peoples R China
[3] Sichuan Univ, West China Sch Pharm, Chengdu, Peoples R China
基金
中国国家自然科学基金;
关键词
Benzylamides; Benzylamines; Copper; Enantioselectivity; Photocatalysis; PHOTOREDOX;
D O I
10.1002/anie.202217638
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A method for direct access to enantioenriched benzylic amides and carbamate-protected primary benzylamines by C-H functionalization is reported. The C-H substrate is used as limiting reagent with only a small excess of the unactivated amide or carbamate nucleophile. The enantioselective intermolecular dehydrogenative C-N bond formation is enabled by a combination of a chiral copper catalyst, a photocatalyst, and an oxidant, and it takes place under mild conditions, which allow for a broad substrate scope. The method is compatible with late-stage C-H functionalization, and it provides easy access to N-15-labeled amides and amines starting from cheap (NH4Cl)-N-15.
引用
收藏
页数:6
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