▎ 摘　　要

NOVELTY - A graphene oxide-loaded imidazolinium compound (I) or (II) as phase transfer catalyst, is new. USE - New imidazolinium-substituted graphene oxide used as phase transfer catalyst in oxidation of benzyl alcohol for producing benzaldehyde. ADVANTAGE - The catalyst having excellent catalytic performance and multiplexing performance, benzyl alcohol conversion rate of 91% or less, and benzaldehyde selectivity of 99% or less, is manufactured efficiently by simple method. DETAILED DESCRIPTION - A graphene oxide-loaded imidazolinium compound of formula (I) or (II) as a phase transfer catalyst, is new. An INDEPENDENT CLAIM is included for manufacture of catalyst (I) or (II), which involves adding graphene oxide of formula (A1) to anhydrous toluene solution containing a siloxane-containing ionic liquid of formula (A2) or (A3), ultrasonically treating the mixture for 30 minutes, vigorously stirring under nitrogen atmosphere, refluxing at 0-120 degrees C for 6-24 hours, washing with ethanol, filtering, stirring at 50 degrees C, vacuum drying for 12 hours to obtain graphene oxide-loaded ionic liquid of formula (A4) or (A5), dispersing the compound (A4) or (A5) in deionized water, uniformly stirring, adding aqueous solution of 0.1 mol/L phosphotungstic acid, stirring at room temperature for 6 hours, filtering, washing with deionized water, vacuum drying at 80 degrees C for 12 hours. The mass ratio of the graphene oxide with respect to the siloxane-containing ionic liquid is 1:1-2:1.