the cyclotrimerization reaction of acetyls, which was used as a pre-established network to introduce propyl sulfonic acid through post-synthetic modification strategy, for the fabrication of SO3H-COF with graphene-like multilayer structure. SO3H-COF was employed as an effective heterogeneous catalyst for the synthesis of benzimidazoles, the synthesis of benzodiazepines and one-pot reductive amination
regulation from the COF contributed to both the selectivehydrogenation of halogenated nitrobenzenes and the tandem hydrogenation-coupling reaction of halogenated nitrobenzenes with aldehyde compounds to synthesize halogenated amines with high selectivityundermild reaction conditions. According to density functional theory calculations, the hydrogenation of halogenated nitrobenzene is exothermic with