C18:1 Methyl ester metathesis in [bmim][X] type ionic liquids.
The efficacy of [bmim][X] ionic liquids (ILs) (X = PF(6) (-), BF(4) (-) and NTf(2) (-)) 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, RuCl(2)(PCy(3))(L)(=CHPh) (L = PCy(3) or H(2)IMes). 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.
Thomas
Priya A
PA
Department of Chemistry, North-West University, Mafikeng, South Africa. priyaaregi@gmail.com
Marvey
Bassie B
BB
D002384:Catalysis; D056831:Coordination Complexes / Q000737:chemistry; D004952:Esters; D052578:Ionic Liquids / Q000737:chemistry*; D009829:Oleic Acids / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013696:Temperature
D056831:Coordination Complexes; D004952:Esters; D052578:Ionic Liquids; D009829:Oleic Acids; D012997:Solvents; C005576:methyl oleate; D012428:Ruthenium