Directed aromatic C–H functionalization of N-arylcarbamates and quinazolinones catalyzed by palladium nanoparticles supported on nitrogen-doped graphene

N. Salarinejad, M. Dabiri*, S. K. Movahed (2022) Colloid and Interface Science Communications, 47, 100606

https://doi.org/10.1016/j.colcom.2022.100606

Abstract

Pd nanoparticle‑nitrogen doped reduced graphene oxide (Pd/N-RGO) nanohybrid was successfully utilized for the C-H-acyloxylation of N-arylcarbamates and the C-H halogenation of quinazolinones with N-halosuccinimides. The use of the catalyst was shown to be a highly efficient, less time-consuming and recyclable procedure for two different types of C-H functionalization; it was even better than Pd(OAc)₂ as its homogeneous counterpart. Additionally, the effect of introducing nitrogen into the graphene lattice on the catalytic activities of palladium was evaluated by synthesizing Pd nanoparticles-reduced graphene oxide. The catalyst exhibited no significant palladium leaching; so, it was successfully recovered and reused in ten consecutive runs without any noticeable decrease in its catalytic activity.