期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 149, 期 1, 页码 1-9出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2011.08.004
关键词
Zr-TMS; Functionalization; Coumarin; Pechmann reaction; Resorcinol; Ethyl acetoacetate
类别
资金
- CSIR, New Delhi, India
A solvent-free versatile and efficient methodology, reported here, allows the synthesis of coumarin by hydroxyalkylation of phenols with ethyl or methyl acetoacetate (via Pechmann reaction) using trifluoromethanesulfonic acid (trifle acid) functionalised Zr-TMS (Zr-TMS, zirconia based transition metal oxide mesoporous molecular sieves) catalysts with different loadings of triflic acid over Zr-TMS (5-25 wt.%) where the total acid strength of acid functionalised Zr-TMS material is increased as increasing loading of triflic acid from 5 to 25 wt.% leading to correspond increased higher catalytic activity. (C) 2011 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据