Catalytic Epoxidation of a Technical Mixture of Methyl Oleate and Methyl Linoleate in Ionic Liquids Using MoO(O2)2·2QOH (QOH = 8-quinilinol) as Catalyst and NaHCO3 as co-Catalyst

Molecules

Shuang-Fei Cai²  Li-Sheng Wang¹ 

[1] id="af1-molecules-14-02935">School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, Chi

关键词: ionic liquids;    epoxidation of vegetable oil;    molybdenum;    hydrogen peroxide;   

DOI  :  10.3390/molecules14082935

来源: mdpi

【 摘 要 】

The oxo-diperoxo molybdenum(VI) complex MoO(O₂)₂·2QOH (QOH = 8-quinilinol) was prepared and characterized by elemental analysis, IR and UV-Vis spectra. The ionic liquids (ILs) [bmim][BF₄], [hydemim][BF₄], and [bmim][PF₆] were characterized by ¹H-NMR and UV-Vis spectra. The epoxidation of a technical mixture of methyl oleate and methyl linoleate with H₂O₂, in [bmim][BF₄], [hydemim][BF₄] and [bmim][PF₆], catalyzed by MoO(O₂)₂·2QOH (QOH = 8-quinilinol) and with NaHCO₃ as co-catalyst has been studied for the first time. It was found that high conversions of methyl oleate and methyl linoleate to their respective oxidation products, as well as the total selectivity of their oxidation products to oxirane in [hydemim][BF₄] were obtained. Also, the IL phases containing the Mo(VI) catalyst can be readily recycled by washing with diethyl ether and drying, and the Mo(VI) catalyst can be reused at least five times.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.