Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 172, Issue -, Pages 88-92Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2012.05.018
Keywords
Aldehyde; 2-Hydroxynaphthalene-1,4-dione; 2H-indene-1,3-dione; beta-Naphthol; Ionic liquid; Catalyst
Funding
- University of Sistan
- Baluchestan Research Council
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Synthesis of 12-aryl-12H-indeno[1,2-b]naphtho[3,2-e]pyran-5,11,13-trione derivatives by the three component reaction of 2-hydroxynaphthalene-1,4-dione, aldehydes, and 2H-indene-1,3-dione under solvent-free conditions at 70 degrees C in the presence of catalytic amount of acidic ionic liquids such as triethylammonium hydrogensulfate ([Et3NH][HSO4]), triethylamine-bonded sulfonic acid ([Et3N-SO3H]Cl), 2-pyrrolidonium hydrogensulfate ([Hnhp] NSW), 3-methyl-1-sulfonic acid imidazolium chloride ([Msim]Cl), and 1-methylimidazolium hydrogensulfate ([Hmim][HSO4]) is described. In addition, 13-aryl-indeno[1,2-binaphtha[12-e]pyran-12(13H)-one derivatives from the reaction of beta-naphthol, aldehydes, and 2H-indene-1,3-dione under thermal solvent-free conditions in the presence of mentioned catalysts is reported. (C) 2012 Elsevier B.V. All rights reserved.
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