An Aza-Enolate Strategy Enables Iridium-Catalyzed Enantioselective Hydroalkenylations of Minimally Polarized Alkenes en Route to Complex N-Aryl β2-Amino Acids

被引:2
|
作者
Hong, Fenglin [1 ]
Robertson, Craig M. [1 ]
Bower, John F. [1 ]
机构
[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, England
基金
欧洲研究理事会;
关键词
ALKYLATION; HYDROARYLATION; HYDROGENATION;
D O I
10.1021/jacs.4c07519
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cationic Ir(I)-complexes modified with homochiral diphosphines promote the hydroalkenylative cross-coupling of beta-(arylamino)acrylates with monosubstituted styrenes and alpha-olefins. The processes are dependent on the presence of an NH unit, and it is postulated that metalation of this generates an iridium aza-enolate that engages the alkene during the C-C bond forming event. The method offers high branched selectivity and enantioselectivity and occurs with complete atom economy. Diastereocontrolled reduction of the products provides beta(2)-amino acids that possess contiguous stereocenters.
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收藏
页码:22923 / 22929
页数:7
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