[HEDUB]Br催化的环氧化合物与二氧化碳制备环状碳酸酯反应的研究被引量：2

[HEDUB]Br CATALYZED CONVERSION OF EPOXIDES AND CO_2 TO CYCLIC CARBONATES

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摘要采用含羟基的离子液体1-羟乙基-1,8-二氮杂双环[5.4.0]十一碳-7-烯溴盐作为催化剂,研究了环氧化合物与CO_2在无有机溶剂、无添加剂情况下的反应,得到了此反应的最佳反应条件,100℃,2 MPa,4h。反应条件相对温和,目标产物收率较高,催化剂具有广泛的普适性。探讨了该反应的反应机理,认为羟基的引入能够与环氧化合物反应形成氢键,降低反应的活化能,促进此反应的进行。 An efficient, metal- and solvent-free catalytic system was developed [or the conversion of CO2 and epoxides to the corresponding cyclic carbonates under mild conditions （100 ℃, 2 MPa CO2, 4 h） in high-to-excellent yields using l：hydroxylethyl-1, 8-Diazabicyclo [5.4.0]-7-undecene bromide as catalystl This protocol was found to be applicable to a variety of epoxides producing the corresponding cyclic carbonates in high yields and selectivity, A possible catalytic cycle for the hydrogen bond-assis- ted ring-opening of epoxide and then reduce the reaction activation energy was also proposed.

作者杨春辉

机构地区中溶科技股份有限公司

出处《精细石油化工》 CAS CSCD 北大核心 2016年第5期69-73,共5页 Speciality Petrochemicals

关键词环氧化合物二氧化碳环状碳酸酯离子液体氢键 epoxide carbon dioxide cyclic carbonate ionic liquid hydrogen bond

分类号 TQ225.52 [化学工程—有机化工]

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