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Synthesis of cyclic ethers by cyclodehydration of 1,n-diols using heteropoly acids as catalysts (2018)

Sun, Y., Huang, Y., Li, M., Lu, J., Jin, N., Fan, B.

Royal Society

In: Royal Society Open Science

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Publication Date: 2018-09-27

Description: Heteropoly acids were used as catalysts for cyclodehydration of various 1, n -diols. Cyclodehydration of butane-1,4-diol, pentane-1,5-diol and hexane-1,6-diol catalysed by H 3 PW 12 O 40 gave tetrahydrofuran, tetrahydropyran and oxepane, respectively. Cyclodehydration of diethylene glycol, triethylene glycol, diethylene glycol monomethyl ether and polyethylene glycol 200 catalysed by H 3 PW 12 O 40 gave 1,4-dioxane. In particular, cyclodehydration of hexane-1,6-diol gave an excellent yield of oxepane (80%). The selectivity exhibited by the H 3 PW 12 O 40 catalyst was even better than that exhibited by other reported catalyst systems for similar cyclodehydration reactions.

Keywords: organic chemistry, synthetic chemistry, green chemistry

Electronic ISSN: 2054-5703

Topics: Natural Sciences in General

Published by Royal Society

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