Epoxide as precatalyst for metal-free catalytic transesterification |
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| Institution: | 1. Department of Chemistry, Shaoxing University, Shaoxing, Zhejiang 312000, China;2. School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China |
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| Abstract: | Transesterification of methyl esters was accelerated by an in situ-generated metal-free catalyst comprising a quaternary alkylammonium salt and an epoxide. The combination of a quaternary alkylammonium acetate and glycidol is optimal, and various esters were synthesized from methyl esters with alcohols in good to excellent yield. Analysis of the catalyst solution revealed that basic species are generated by the ring-opening reaction of epoxide. |
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| Keywords: | Metal-free catalyst Epoxide Ammonium salt Transesterification |
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