Li, Zhengyi; Li, Hu; Yang, Song published the artcile< Carboxylate-Functionalized Zeolitic Imidazolate Framework Enables Catalytic N-Formylation Using Ambient CO2>, Computed Properties of 10541-78-3, the main research area is carboxylate functionalized zeolitic imidazolate framework preparation recyclability; amine carbon dioxide ZIF catalyst formylation; amide preparation.
In this work, carboxylate-functionalized zeolitic imidazolate framework (F-ZIF-90) with good crystallinity and porosity was constructed from ZIF-90 and employed as a robust heterogeneous catalyst to boost the reductive N-functionalization of various amines with CO2 to furnish N-formyl compounds (up to 99% yield) in the presence of PhSiH3 under an ambient environment. The imidazole carboxylate species (COO-) can not only activate hydrosilane and CO2 to form the key intermediate formoxysilane but also activate amines to participate in the N-formylation reaction to obtain the target product. Moreover, it can enhance the catalyst capture and exchange ability toward ambient CO2. The powerful adsorption capacity of the F-ZIF-90 catalyst toward CO2 was conducive to elevating CO2 concentration around the active species. Theor. calculations showed that the carboxylate-mediated conversion path undergoes the transition state of hydrosilane activation with a relatively lower energy barrier (ΔG = 26.9 kcal mol-1). F-ZIF-90 exhibited good thermochem. stability with no obvious activity attenuation after repeated use 5 times. This strategy opens a new avenue based on ZIFs to develop heterogeneous catalysts for reductive upgrading of CO2.
Advanced Sustainable Systems published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 10541-78-3 belongs to class ethers-buliding-blocks, and the molecular formula is C8H11NO, Computed Properties of 10541-78-3.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem