Poly(4-vinylpyridinium) perchlorate as an efficient and recyclable catalyst for the synthesis of biscoumarins and bisindoles

被引:20
|
作者
Shirini, Farhad [1 ]
Esmaeeli-Ranjbar, Saeed [1 ]
Seddighi, Mohadeseh [1 ]
机构
[1] Univ Guilan, Fac Sci, Dept Chem, Rasht 41335, Iran
关键词
Poly(4-vinylpyridinium) perchlorate; Biscoumarins; Bis(indoly)methanes; Reusable catalyst; SOLVENT-FREE CONDITIONS; CERIC AMMONIUM-NITRATE; REUSABLE CATALYST; FACILE SYNTHESIS; MILD CONDITIONS; DERIVATIVES; WATER; ACID; BIS(INDOLYL)METHANES; COUMARIN;
D O I
10.1016/S1872-2067(14)60061-9
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Poly(4-vinylpyridinium) perchlorate has been used as an efficient solid acid catalyst for the synthesis of 3,3'-(arylmethylene)bis(4-hydroxycoumarins) and bis(indoly)methanes, with the products being formed in excellent yields over very short reaction times under mild and environmentally friendly conditions. This catalyst can be reused several times without any appreciable loss in its activity. (C) 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1017 / 1023
页数:7
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