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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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