以杂多酸为催化剂，通过1, -二醇的环化脱水合成环醚。
Synthesis of cyclic ethers by cyclodehydration of 1,-diols using heteropoly acids as catalysts.
作者信息
Sun Yufeng, Huang Yatao, Li Minmin, Lu Jia, Jin Nuo, Fan Bei
机构信息
Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, People's Republic of China.
出版信息
R Soc Open Sci. 2018 Sep 26;5(9):180740. doi: 10.1098/rsos.180740. eCollection 2018 Sep.
Heteropoly acids were used as catalysts for cyclodehydration of various 1,-diols. Cyclodehydration of butane-1,4-diol, pentane-1,5-diol and hexane-1,6-diol catalysed by HPWO gave tetrahydrofuran, tetrahydropyran and oxepane, respectively. Cyclodehydration of diethylene glycol, triethylene glycol, diethylene glycol monomethyl ether and polyethylene glycol 200 catalysed by HPWO gave 1,4-dioxane. In particular, cyclodehydration of hexane-1,6-diol gave an excellent yield of oxepane (80%). The selectivity exhibited by the HPWO catalyst was even better than that exhibited by other reported catalyst systems for similar cyclodehydration reactions.
杂多酸被用作各种1, -二醇环脱水反应的催化剂。由HPWO催化的1,4 -丁二醇、1,5 -戊二醇和1,6 -己二醇的环脱水反应分别生成四氢呋喃、四氢吡喃和氧杂环庚烷。由HPWO催化的二甘醇、三甘醇、二甘醇单甲醚和聚乙二醇200的环脱水反应生成1,4 -二氧六环。特别地，1,6 -己二醇的环脱水反应生成氧杂环庚烷的产率很高（80%）。HPWO催化剂表现出的选择性甚至优于其他报道的用于类似环脱水反应的催化剂体系。
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