CATALYTIC SYSTEM AND METHOD FOR PREPARING ETHYLENE CARBONATE DERIVATIVE BY REACTION OF CARBON DIOXIDE AND ETHYLENE OXIDE DERIVATIVE UNDER EXTREMELY MILD CONDITIONS

WIPO Patent Application WO/2016/197439

A1

An imidazole ionic liquid-ZnX2/base catalytic system and a method for catalytic preparation of an ethylene carbonate derivative with same. The catalytic system is composed of three ingredients, an imidazole ionic liquid, ZnX2 and a base and can catalyze a cycloaddition reaction of carbon dioxide and an ethylene oxide derivative under conditions of 0.5-1 atm., 15°C-35°C and a green solvent. The amounts of ZnX2 and the base are both 0.5%-5% of the molar amount of the ethylene oxide derivative, and the amount of the imidazole ionic liquid is 1-3 times the molar amount of the ethylene oxide derivative. The synthetic method has the characteristics of strictly mild reaction conditions, high catalytic activity, a single product, a high reaction yield, a reusable catalyst, a simple product purification operation and the like.

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CAO CHANGSHENG (CN)
SHI YANHUI (CN)
ZHANG HUIZI (CN)
KONG XIANQIANG (CN)

PCT/CN2015/085620

December 15, 2016

July 30, 2015

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UNIV JIANGSU NORMAL (CN)

B01J31/26; C07D317/36; C07D317/46; C07D407/12; C07D493/04

CN102702165A	2012-10-03
CN1631886A	2005-06-29
CN101037431A	2007-09-19
CN102146070A	2011-08-10
CN102250052A	2011-11-23

WUXIWANLIZHISHICHANQUANSHIWUSUO (TESHUPUTONGHEHUO) (CN)
无锡万里知识产权代理事务所（特殊普通合伙） (CN)

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