Synthesis of cyclic ethers by cyclodehydration of 1, n -diols using heteropoly acids as catalysts | Zendy

Yufeng Sun | Zendy; Yatao Huang | Zendy; Minmin Li | Zendy; Jia Lu | Zendy; Nuo Jin | Zendy; Bei Fan | Zendy

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

Author(s) -

Yufeng Sun,

Yatao Huang,

Minmin Li,

Jia Lu,

Nuo Jin,

Bei Fan

Publication year - 2018

Publication title -

royal society open science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.84

H-Index - 51

ISSN - 2054-5703

DOI - 10.1098/rsos.180740

Subject(s) - diethylene glycol , catalysis , diol , yield (engineering) , chemistry , tetrahydropyran , triethylene glycol , organic chemistry , polyethylene glycol , ethylene glycol , ether , selectivity , tetrahydrofuran , materials science , solvent , ring (chemistry) , metallurgy

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.

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