期刊
TETRAHEDRON LETTERS
卷 49, 期 43, 页码 6250-6253出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.08.045
关键词
Friedel-Crafts acylation; ionic liquid; imidazolium chloroaluminate; electron-deficient azaindoles; azaindole-3-glyoxylic acid
An efficient, one-pot Friedel-Crafts acylation/hydrolysis reaction promoted by the acidic ionic liquid 1-ethyl-3-methylimidazolium chloroaluminate (generated from 1-ethyl-3-methylimidazolium chloride (EmimCl) and aluminum chloride (X(AlCl(3)), Mole fraction X = 0.75) for the formation of 3-glyoxylic acid derivatives of electron-deficient, substituted 4- and 6-azaindoles is described. (C) 2008 Elsevier Ltd. All rights reserved.
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