Polymeric ionic liquid as novel catalyst for the Prins reaction

被引：4

作者：

Liu, Qiao ^{[1
,2
]}

Jin, Fuxiang ^{[1
]}

Kang, Meirong ^{[1
]}

Song, Heyuan ^{[1
]}

Chen, Jing ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

ARABIAN JOURNAL OF CHEMISTRY | 2020年 / 13卷 / 11期

关键词：

Polymeric ionic liquids; Prins reaction; 4-methyl-1,3-dioxane; MECHANISM; CONDENSATION; CYCLIZATION; EFFICIENT; ACID; STEREOCHEMISTRY; ISOBUTYLENE; ISOPRENE;

D O I：

10.1016/j.arabjc.2020.09.029

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of micro-mesoporous polymeric ionic liquids (PILs) have been successfully synthesized by the method of anion and cation copolymerization. Then use FT-IR, N-2 adsorption-desorption isotherms, SEM, and TG to characterize them. Furthermore, the catalytic performance of the synthesized PILs was investigated for the Prins reaction of propylene with 1, 3, 5-trioxane. Among the four PILs synthesized, VIMBs-DVB-SSA has better catalytic activities for the Prins reaction. Under the optimal conditions, 100 degrees C, 8 wt%, 4 h and n (propylene)/n (1, 3, 5-trioxane) = 4:1, the conversion of formaldehyde (99.8%) and selectivity (81.7%) for 4-methyl-1, 3-dioxane. In addition, the effects of reaction time, catalyst dosage, and reaction temperature and mole ratio of reaction substrates on the reaction were also investigated. The prepared catalyst had good thermal stability and can be reused easily. (C) 2020 The Author(s). Published by Elsevier B.V. on behalf of King Saud University.

引用

页码：8003 / 8011

页数：9

共 60 条

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