Phosphotungstic Acid: An Efficient Catalyst for the Aqueous Phase Synthesis of Bis-(4-hydroxycoumarin-3-yl)methanes

被引：69

作者：

Singh, Prashant ^{[2
,3
]}

Kumar, Pradeep ^{[1
]}

Katyal, Anju ^{[3
]}

Kalra, Rashmi ^{[4
]}

Dass, Sujata K. ^{[5
]}

Prakash, Satya ^{[6
]}

Chandra, Ramesh ^{[1
,3
]}

机构：

[1] Univ Delhi, Dept Chem, Delhi 110007, India

[2] Univ Delhi, ARSD Collage, Delhi 110007, India

[3] Univ Delhi, Dr BR Ambedkar Ctr Biomed Res, Delhi 110007, India

[4] Univ Delhi, AND Collage, Delhi 110007, India

[5] Univ Delhi, VPC Inst, Delhi 110007, India

[6] McGill Univ, Dept Biomed Engn, Montreal, PQ H3A 2B4, Canada

来源：

CATALYSIS LETTERS | 2010年 / 134卷 / 3-4期

关键词：

4-Hydroxycoumarin; Phosphotungstic acid; Green chemistry; CRYSTALLINE SULFATED-ZIRCONIA; SOLVENT-FREE; WATER; DERIVATIVES;

D O I：

10.1007/s10562-009-0239-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this present work, we report that phosphotungstic acid provides a simple, efficient and environmentally benign route is a two-component one-pot domino Knoevenagel-type condensation/Michael reaction between 4-coumarin derivative and an aldehyde in water as a solvent in shorter duration with high yields. [GRAPHICS] .

引用

页码：303 / 308

页数：6

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