Enantioselective Friedel-Crafts Alkylation of N-Methylindoles with Nitroalkenes Catalyzed by Chiral Bifunctional Abietic-Acid-Derived Thiourea-ZnII Complexes

被引:18
作者
Huang, Wei-gen [1 ]
Wang, Heng-shan [1 ]
Huang, Guo-bao [1 ]
Wu, Yong-ming [1 ]
Pan, Ying-ming [1 ]
机构
[1] Guangxi Normal Univ, Key Lab Chem & Mol Engn Med Resources, Minist Educ China, Sch Chem & Chem Engn, Guilin 541004, Peoples R China
关键词
Asymmetric synthesis; C-C coupling; Friedel-Crafts alkylation; Zinc; Aromatic substitution; Nitroalkenes; CONJUGATE ADDITION; MICHAEL ADDITION; ALPHA; ALPHA-DISUBSTITUTED ALDEHYDES; INDOLES; DERIVATIVES; ORGANOCATALYSTS; RECOGNITION; SEPARATIONS; LIGAND;
D O I
10.1002/ejoc.201200584
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The catalytic asymmetric FriedelCrafts alkylation of N-methylindoles with nitroalkenes catalyzed by bifunctional abietic-acid-derived thiourea-ZnII complexes was investigated. Various types of the nitroalkylated indoles were synthesized under mild conditions and obtained with excellent yields (up to 99?%) and good enantioselectivities (up to 86?%?ee). These chiral thiourea catalysts are easily available from the commercial abietic acid.
引用
收藏
页码:5839 / 5843
页数:5
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