Synthesis of cyclic ethers by cyclodehydration of 1,n-diols using heteropoly acids as catalysts
文献类型： 外文期刊
第一作者： Sun, Yufeng
作者： Sun, Yufeng;Huang, Yatao;Li, Minmin;Lu, Jia;Jin, Nuo;Fan, Bei
作者机构：
关键词： heteropoly acid; cydic ether; cydodehydration; catalyst; synthesis
期刊名称：ROYAL SOCIETY OPEN SCIENCE （ 影响因子：2.963； 五年影响因子：3.44 ）
ISSN： 2054-5703
年卷期： 2018 年 5 卷 9 期
页码：
收录情况： SCI
摘要： Heteropoly acids were used as catalysts for cyclodehydration of various 1,n-diols. Cyclodehydration of butane-1,4-diol, pentanes-1,5-diol and hexane-1,6-diol catalysed by H3PW12O40 gave tetrahydrofuran, tetrahydropyran and oxepane, respectively. Cyclodehydration of diethylene glycol, triethylene glycol, diethylene glycol monomethyl ether and polyethylene glycol 200 catalysed by H3PW12O40 gave 1,4-dioxane. In particular, cyclodehydration of hexane-1,6-diol gave an excellent yield of oxepane (80%). The selectivity exhibited by the H3PW12O40 catalyst was even better than that exhibited by other reported catalyst systems for similar cyclodehydration reactions.
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