Synthesis of cyclic carbonates from carb
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Yinxi Zhou; Suqin Hu; Xiumin Ma; Shuguang Liang; Tao Jiang; Buxing Han
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Article
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2008
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Elsevier Science
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English
β 438 KB
A series of betaine-based salts containing quaternary ammonium ion and carboxylic acid group were synthesized by direct protonation of anhydrous betaine using different BrΓΈnsted acids. The catalytic activity of these salts for the synthesis of cyclic carbonates via cycloaddition reaction of CO 2 wit