Oxazaborolidinone-Catalyzed Enantioselective Friedel-Crafts Alkylation of Furans and Indoles with α,β-Unsaturated Ketones

被引:29
作者
Adachi, Shinya [1 ]
Tanaka, Fumi [1 ]
Watanabe, Kazuya [1 ]
Harada, Toshiro [1 ]
机构
[1] Kyoto Inst Technol, Dept Chem & Mat Technol, Sakyo Ku, Kyoto 6068585, Japan
关键词
C-H BONDS; STEREOSELECTIVE ALKYLATION; CONJUGATE ADDITION; SIMPLE ENONES; 4,7-DIHYDROINDOLES; ARENES;
D O I
10.1021/ol9021436
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
allo-Threonine-derived oxazaborolidinone (10 mol %) catalyzes the Friedel-Crafts alkylation of furans and indoles with simple acyclic alpha,beta-unsaturated ketones to give products with high yield and high enantioselectivity. The use of N,N-dimethylaniline (2.5-10 mol %) as an additive is essential for enantioselectivity.
引用
收藏
页码:5206 / 5209
页数:4
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