Recent advances in cycloaddition of CO_(2) with epoxides:halogen-free catalysis and mechanistic insights  

作　　者：Jiaxin Li Chengguang Yue Wenhao Ji Bangman Feng Mei-Yan Wang Xinbin Ma 

机构地区：[1]School of Chemical Engineering and Technology,Key Laboratory for Green Chemical Technology of Ministry of Education,Collaborative Innovation Center of Chemical Science and Engineering,Tianjin University,Tianjin 300072,China [2]Zhejiang Institute of Tianjin University,Ningbo Key Laboratory of Green Petrochemical Carbon Emission Reduction Technology and Equipment,Ningbo 315200,China

出　　处：《Frontiers of Chemical Science and Engineering》2023年第12期1879-1894,共16页化学科学与工程前沿（英文版）

基　　金：Financial support from the National Key R&D Program of China(Grant No.2022YFB4101900);National Natural Science Foundation of China(Grant Nos.22278305 and U21B2096).

摘　　要：The atom-economical cycloaddition of CO_(2) with epoxides to synthesize cyclic carbonates is a promising route for valuable utilization of CO_(2).Halogenide such as alkali metal halides and quaternary ammonium salt have been developed as the efficient catalysts.However,the spilled halogen causes equipment corrosion and affects the product purity.To address these concerns,the halogen-free cycloaddition of CO_(2) with epoxides has always been desired.In this review,we systematically discussed the halogen-free catalysis for cycloaddition of CO_(2) with epoxides from the mechanistic insights,aiming to promote the development of efficient halogen-free catalysts.Two types of catalysts,i.e.,alternatives of halogen nucleophiles for epoxide activation,and bifunctional catalysts with Lewis acid-base sites for synergistic activation of CO_(2) and epoxides are summarized and emphasized.Specially,metal oxides as the potential halogen-free catalysts are highlighted due to their flexible acid-base sites for synergistic activation of CO_(2) and epoxides,facile preparation,and low cost.

关 键 词：carbon dioxide halogen-free catalysis cyclic carbonate mechanistic insight 

分 类 号：TQ225.52[化学工程—有机化工] TQ426[环境科学与工程—环境工程] X701