▎ 摘　　要

Mesoporous silica/graphene (KIT-6/G) with pendent 3-mercaptopropyl groups has been prepared by condensation of surface silanols and (3-mercaptopropyl)trimethoxysilane (MPTMS). Treatment of the mercaptopropylated with Pd(CH3CN)(2)Cl-2 gave a heterogeneous Pd-catalyst (Pd@KIT-6/G-SH). The catalytic activity of the catalyst was investigated in two types of C-H functionalized for the synthesis of 2-cyanoacetanilide and 2-arylpyridine 1-oxide derivatives via C-H activation. Additionally, for the study of the effect of thiol ligand, the Pd@KIT-6/G was prepared from the treatment of Pd(CH3CN)(2)Cl-2 with KIT-6/G. The catalyst has been successfully recovered and reused without loss of activity over seven cycles of reactions.