首页|Development of a correlation equation between the diesterification of maleic anhydride and the acidic ionic liquids nature

Development of a correlation equation between the diesterification of maleic anhydride and the acidic ionic liquids nature

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The sustainable synthesis of dimethyl maleate via diesterification through the utilization of ionic liquid(IL)is of great importance.However,the relationship between the ILs nature and the reactivity of diesterification is still unclear.Herein,a series of ILs with different structures were selected for the comprehensive investigation of diesterification.The acidity(H0)and Kamlet-Taft solvent parameters(hydrogen bond donor ability(α),hydrogen bond acceptor ability(β),and polarizability(π*))of ILs were measured by UV-Visible spectroscopy,and the effects of them on the diesterification of maleic anhydride were also studied in detail.The results indicated that not only H0 of the IL-based catalysis system,but also its α,β,and π* influenced the reaction activity of die-sterification.Furthermore,a quantifiable correlation was fitted between the natural logarithm of the rate constant and multiple parameters of ILs,indicating that the diesterification rate had a positive correlation with the H0,α,and π*,and inverse correlation with the β of the IL.A plausible synergetic reaction mechanism for the excellent performance of[(HSO3)PMim][HSO4]has been proposed.Overall,this work thoroughly explored the relationship between the nature of ILs on diesterification in-depth,which will reveal the nature of diesterification in detail.

Multiparameter correlation equationDiesterificationMaleic anhydrideIonic liquidsKamlet-Taft solvent parameters

Yumei Liu、Shengxin Chen、Ran An、Xingsheng Wang、Ruixia Liu

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Beijing Key Laboratory of Ionic Liquids Clean Process,CAS Key Laboratory of Green Process and Engineering,State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Innovation Academy for Green Manufacture,Chinese Academy of Sciences,Beijing,100190,China

Department of Chemistry,School of Chemical Engineering,Dalian University of Technology,Dalian,116023,China

School of Chemical Engineering and Energy,Zhengzhou University,Zhengzhou,450001,China

Innovation Academy for Green Manufacture,Chinese Academy of Sciences,Beijing,100190,China

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National Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaKey Programs of the Chinese Academy of SciencesKey Programs of Innovation Academy for Green Manufacture,CAS

218783152017YFA0206803KFZD-SW-413IAGM2020C17

2023

绿色化学工程(英文)
中国科学院过程工程研究所

绿色化学工程(英文)

CSCD
ISSN：
年,卷(期)：2023.4(1)
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