Synthesis of 7-hydroxycoumarins by Pechmann reaction using Nafion resin/silica nanocomposites as catalysts

被引:103
作者
Laufer, MC [1 ]
Hausmann, H [1 ]
Hölderich, W [1 ]
机构
[1] Rhein Westfal TH Aachen, RWTH Aachen, Dept Chem Technol & Heterogeneous Catalysis, D-52074 Aachen, Germany
关键词
Pechmann reaction; solid acid catalyst; Nafion resin/silica nanocomposite; coumarin derivatives;
D O I
10.1016/S0021-9517(03)00073-3
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
The reaction of resorcinol with ethyl acetoacetate (Pechmann reaction) or with acrylic acid over novel Nafion resin/silica composite materials with 40 and 80 wt% of Nafion in silica produces 7-hydroxycoumarins in high yields, under mild reaction conditions in short reaction time. Other solid acid catalysts were tested for comparison reasons. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:315 / 320
页数:6
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