Poly(4-vinylpyridinium)hydrogen sulfate: A novel and efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under conventional heating and ultrasound irradiation

被引:55
|
作者
Khaligh, Nader Ghaffari [1 ]
机构
[1] Univ Guilan, Dept Chem, Coll Sci, Rasht, Iran
关键词
Poly(4-vinylpyridinium)hydrogen sulfate; Xanthenes; Ultrasound irradiation; One-pot reactions; BETA-INDOLYLKETONES; PROMOTED SYNTHESIS; ACID; MILD; CONDENSATION; XANTHENE; FACILE; PTSA;
D O I
10.1016/j.ultsonch.2011.12.004
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
A simple and convenient procedure for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes is described through a one-pot condensation of 2-naphthol with aryl aldehydes in the presence of poly(4-vinylpyridinium)hydrogen sulfate as an efficient, cheap, readily synthesized and eco-friendly catalyst in a solvent free media using conventional heating and ultrasound irradiation. (C) 2011 Elsevier B.V. All rights reserved.
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页码:736 / 739
页数:4
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