Synthesis of Optically Active 2H-Thiopyrano[2,3-b]quinolines with Three Contiguous Stereocenters via an Organocatalytic Asymmetric Tandem Michael-Henry Reaction

被引:64
|
作者
Wu, Lulu [1 ]
Wang, Youming [1 ]
Song, Haibin [1 ]
Tang, Liangfu [1 ]
Zhou, Zhenghong [1 ]
Tang, Chuchi [1 ]
机构
[1] Nankai Univ, Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
基金
中国国家自然科学基金;
关键词
Henry reaction; Michael addition; nitrooelfins; tandem reactions; 2H-thiopyrano[2; 3-b]quinolines; ALDOL REACTIONS; SUPPORTED SYNTHESIS; QUINOLINES; ANTAGONISTS; BINDING; SERIES;
D O I
10.1002/adsc.201300086
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Optically active 2H-thiopyrano[2,3-b]quinolines with three contiguous stereocenters have been synthesized via a chiral bifunctional squaramide-catalyzed tandem MichaelHenry reaction between 2-mercaptoquinoline-3-carbaldehydes and nitroolefins. The reactions proceed with excellent diastereo- and enantioselectivity to give the title compounds in high yields with high levels of diastereo- and enantioselectivity (up to >99/1 dr and >99% ee, respectively).
引用
收藏
页码:1053 / 1057
页数:5
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