C18:1 Methyl Ester Metathesis in [bmim][X] Type Ionic Liquids

International Journal of Molecular Sciences

Priya A. Thomas¹ 

[1] Department of Chemistry, North-West University, P/Bag X2046, Mafikeng, 2735, South Africa; E-Mail

关键词: metathesis;    methyl oleate;    [bmim][X];    RuCl₂(PCy₃)(L)(=CHPh);   

DOI  :  10.3390/ijms10115020

来源: mdpi

【 摘 要 】

The efficacy of [bmim][X] ionic liquids (ILs) (X = PF₆⁻, BF₄⁻ and NTf₂⁻) as reaction media for methyl oleate metathesis was compared with that of conventional organic solvents (PhCl, PhMe, DCM and DCE) using the well-defined first and second generation Grubbs precatalysts, RuCl₂(PCy₃)(L)(=CHPh) (L = PCy₃ or H₂IMes). Best catalytic performance, with excellent selectivity (>98%) at moderate reaction temperatures, was achieved in [bmim][X] ILs compared to conventional solvents. The effects of anion, reaction temperature, solvent polarity, solvent viscosity, and ligand-anion interaction on the reaction are also addressed.

【 授权许可】

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