▎ 摘　　要

NOVELTY - Preparing graphene oxide-supported diimine-coordinated palladium complex comprises (i) reacting aldehyde-containing diimine (I) with silane coupling agent to obtain silane coupling agent-modified diimine ligand, (ii) reacting silane coupling agent-modified diimine ligand with graphene oxide to obtain graphene oxide-loaded diimine ligand, and (iii) reacting obtained graphene oxide-supported diimine ligand with palladium salt to obtain final product. USE - The product is useful as catalyst in organic synthesis reactions including Suzuki reaction and C-H activation reaction (all claimed). ADVANTAGE - The method produces catalyst that can be recycled many times. DETAILED DESCRIPTION - Preparing graphene oxide-supported diimine-coordinated palladium complex comprises (i) reacting aldehyde-containing diimine of formula (I) with silane coupling agent to obtain silane coupling agent-modified diimine ligand, (ii) reacting silane coupling agent-modified diimine ligand with graphene oxide to obtain graphene oxide-loaded diimine ligand, and (iii) reacting obtained graphene oxide-supported diimine ligand with palladium salt to obtain final product. An INDEPENDENT CLAIM is also included for graphene oxide-supported diimine-coordinated palladium complex obtained by above method.