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Synthesis of cyclic carbonates from epoxides and carbon dioxide over silica-supported quaternary ammonium salts under supercritical conditions

✍ Scribed by Jin-Quan Wang; De-Lin Kong; Jian-Yu Chen; Fei Cai; Liang-Nian He

Book ID
108212641
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
281 KB
Volume
249
Category
Article
ISSN
1381-1169

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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