期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 49, 期 10, 页码 4607-4613出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie902040m
关键词
-
A number of complexes of copper(II) and iron(III) with different N,N and N,O ligands were tested as catalysts for the hydroxylation of phenol to dihydroxybenzene by hydrogen peroxide for the purpose of achieving a high catechol selectivity. Cu(II) complexes were demonstrated to give a high selectivity on catechol. The best selectivity was found for Cu(II) complex with 2,6-dihydroxypiridine. The best conditions for the selective formation of catechol were the reaction time of 15 min and a ratio of 2,6-dihydroxypiridine to copper greater than 3 (65 degrees C). The concentration of phenol and the reaction time had a dramatic influence on the catechol yield and selectivity for most selective catalysts. At high concentrations and reaction times, both the catechol yield and selectivity decreased, with tars being formed.
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