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Enantioselective aza-Friedel-Crafts reaction catalyzed by a water inclusion complex of O,O′-diacyl tartaric acid
被引:39
|作者:
Ube, Hitoshi
[1
]
Fukuchi, Satoko
[1
]
Terada, Masahiro
[1
]
机构:
[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan
关键词:
CHIRAL DICARBOXYLIC-ACID;
N-ACYL IMINES;
PHOSPHORIC-ACID;
MANNICH REACTION;
BOC IMINES;
ALKYLATION;
INDOLES;
DERIVATIVES;
ENAMINE;
DESIGN;
D O I:
10.1016/j.tetasy.2010.04.012
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The efficiency of an O,O'-diacyl tartaric acid derivative as a chiral Bronsted acid catalyst was investigated in the enantioselective Friedel-Crafts reaction of indoles with an cc-imino ester. The inclusion of water in the O,O'-di-p-toluoyl-o-tartaric acid catalyst is crucial for obtaining the enantioselectivity, and under optimal conditions the corresponding Friedel-Crafts product was obtained with an enantioselectivity of up to 88% ee. (C) 2010 Elsevier Ltd. All rights reserved.
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页码:1203 / 1205
页数:3
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