共 50 条
A poly(ethylene glycol)-supported quaternary ammonium salt for highly efficient and environmentally friendly chemical fixation Of CO2 with epoxides under supercritical conditions
被引:131
|作者:
Du, Y
Wang, JQ
Chen, JY
Cai, F
Tian, JS
Kong, DL
He, LN
[1
]
机构:
[1] Nankai Univ, Inst Elementoorgan Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
[2] Nankai Univ, Natl Pesticide Engn & Res Ctr Tianjin, Tianjin 300071, Peoples R China
基金:
中国国家自然科学基金;
关键词:
supported catalyst;
cyclic carbonate;
supercritical CO2;
polyethylene glycol;
homogeneous catalyst recycling;
D O I:
10.1016/j.tetlet.2005.12.077
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A PEG-supported quaternary ammonium salt is proved to be an efficient and recyclable homogeneous catalyst for solvent-free synthesis of cyclic carbonates from carbon dioxide and epoxides under supercritical conditions. Supporting Bu4NBr on soluble polymer PEG6000 enhances the catalytic activity. The workup procedure is straightforward, and the catalyst can be reused over five times with no appreciable loss of catalytic activity and selectivity. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1271 / 1275
页数:5
相关论文