Synthesis of spiro[indoline-3,4'-pyrano[2,3-c]pyrazole] and spiro[indoline-3,4'-pyrano[2,3-c]chromene] derivatives using silica-bonded ionic liquids as a recyclable catalyst in aqueous medium

被引：25
|
作者：
Niknam, Khodabakhsh [1 ]
Piran, Abolhassan [1 ]
Karimi, Zahra [1 ]
机构：
[1] Persian Gulf Univ, Dept Chem, Fac Sci, Bushehr 75169, Iran
来源：
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY | 2016年 / 13卷 / 05期
关键词：
Spiro[indoline-3,4 '-pyrano[2,3-c]pyrazoles; Spiro[indoline-3,4 '-pyrano[2,3-c]chromenes; Silica-bonded ionic liquids; Heterogeneous catalyst; Synthesis; Water; ONE-POT SYNTHESIS; SODIUM N-PROPIONATE; SPIROOXINDOLE DERIVATIVES; 3-COMPONENT SYNTHESIS; REUSABLE CATALYST; EFFICIENT; CONDENSATION; GREEN; ACID;
D O I：
10.1007/s13738-015-0801-y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Silica-bonded ionic liquids is employed as a recyclable catalyst for the synthesis of spiro[indoline-3,4'-pyrano[2,3-c]pyrazoles] via one-pot condensation reaction of isatin, activated methylene reagents, and 3-methyl-l-phenyl-5-pyrazolone in refluxing aqueous medium in good to high yields. Also, these silica-bonded ionic liquids were used as catalysts for the synthesis of spiro[indoline-3,4'-pyrano[2,3-c]chromene derivatives in refluxing aqueous medium in high yields. Catalyst could be recycled for several times without any additional treatment. Silica-bonded ionic liquids is employed as a recyclable catalyst for the synthesis of spiro[indoline-3,4'-pyrano[2,3-c]pyrazoles] and spiro[indoline-3,4'-pyrano[2,3-c]chromene via one-pot condensation reaction of isatin, activated methylene reagents, and 3-methyl-l-phenyl-5-pyrazolone or 4-hydroxy coumarin respectively in refluxing aqueous medium in good to high yields. [GRAPHICS] .
引用
收藏
页码：859 / 871
页数：13
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