Grafted Polyethylene Glycol-Graphene Oxide as a Novel Triphase Catalyst for Carbenes and Nucleophilic Substitution Reactions

被引：10
作者：
Yang, Xiaohai [1 ]
Zhai, Jie [1 ]
Xu, Tongchun [1 ]
Xue, Bing [1 ]
Zhu, Jie [1 ]
Li, Yongxin [1 ]
机构：
[1] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China
来源：
CATALYSIS LETTERS | 2019年 / 149卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Polyethylene glycol; Graphene oxide; Triphase catalyst; Carbenes reaction; Nucleophilic substitution; PHASE-TRANSFER CATALYST; EFFICIENT; DERIVATIVES; SUPPORTS;
D O I：
10.1007/s10562-019-02849-w
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Separation and reusability had been main problems for the using of polyethylene glycol (PEG) as phase transfer catalysts (PTCs). To solve these problems, PEG was firstly and successfully grafted on graphene oxide (GO) using BF3 center dot C2H5OC2H5 as Lewis acid catalyst. The solid GO-PEG composites were systemically investigated by characterization techniques (TG, FT-IR, XPS, ICP-AES etc.) and then applied to some carbenes and nucleophilic substitution reactions as novel triphase catalysts. As the results, GO-PEG showed not only equally excellent catalytic activity (>= 93% yield of 7,7-dichlorobicyclo[4.1.0]heptane and iodooctane) but also incomparable reusability (>= 85% yield of iodooctane after using for four times) in comparison with traditional PTCs (PEG). [GRAPHICS] .
引用
收藏
页码：2767 / 2775
页数：9
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