Mn-, Ru-Coordinated Covalent Triazine Framework as Catalysts for Epoxidation of Cyclohexene

Abstract

Abstract-The alkene epoxidation is an important reaction for organic synthesis and the catalytic epoxidation of cyclohexene can be widely used for the synthesis of fine chemicals. In this work, a new kind of heterogeneous catalysts, Mn/Ru coorindated covalent triazine framework (Mn-CTF and Ru-CTF), for oxidation of cyclohexene to epoxy hexane were designed. The catalyst Mn-CTF/Ru-CTF was prepared via coordination of manganese chloride hydrate/ruthenium trichloride (III) hydrate with CTF, which was obtained by self-polymerization of 2, 6-pyridinedicarbonitrile. Reducing and oxidizing agents are isobutyraldehyde and molecular oxygen. The yield of epoxidation reaction of cyclohexene catalyzed by the Mn-CTF and Ru-CTF can be up to 97% and 99% under room temperature and atmospheric pressure, respectively.