Journal
JOURNAL OF OLEO SCIENCE
Volume 67, Issue 5, Pages 609-616Publisher
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess17194
Keywords
cycloaddition; CO2; deep eutectic solvents; TBAB; epoxidized methyl soyates
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Funding
- China Postdoctoral Science Foundation [2017M622364]
- Project of Henan University of Technology Excellent Young Teachers [2014003]
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Carbonated methyl soyates have been successfully prepared by cycloaddition of carbon dioxide (CO2) to epoxidized methyl soyates in tetrabutylammonium bromide (TBAB)-based deep eutectic solvents (DES). Experimental parameters, i.e., reaction temperature, reaction time, CO, pressure and TBAB concentration were evaluated. The different reaction conditions have a significant influence on the yields of carbonated methyl soyates. The use of TBAB-based DES (tetrabutylammonium bromide/triethylene glycol) significantly shortened the reaction time of the cycloaddition of CO, to epoxidized methyl soyates. FT-IR and NMR analysis indicated that 95% of the yield of the five-membered cyclic carbonated methyl soyates were obtained at 120 degrees C with 1.0 MPa pressure of CO2.
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