Copper(II) Schiff-Base Complex Modified UiO-66-NH<sub>2</sub>(Zr) Metal–Organic Framework Catalysts for Knoevenagel Condensation–Michael Addition–Cyclization Reactions
Farzaneh Ghobakhloo, Davood Azarifar, Masoud Mohammadi, Hassan Keypour, Hamid Zeynali
Abstract
]phthalazine-5,10-diones over a novel mesoporous metal-organic framework-based supported Cu(II) nanocatalyst [UiO-66@Schiff-Base-Cu(II)] under ambient conditions. Moreover, the [UiO-66@Schiff-Base-Cu(II)] complex efficiently catalyzed the selectively large-scale synthesis of the target molecules with high yield and large turnover numbers. As presented, the catalyst demonstrates excellent reusability and stability and can be recycled up to six runs without noticeable loss of activity. Moreover, ICP-AES analysis showed that no leaching of Cu complex occurred during the recycling process of the heterogeneous [UiO-66@Schiff-Base-Cu(II)] nanocatalyst.
Topics & Concepts
ChemistryKnoevenagel condensationMalononitrileCatalysisSchiff baseMetal-organic frameworkHeterogeneous catalysisLeaching (pedology)Michael reactionOrganometallic chemistryYield (engineering)Organic chemistryCombinatorial chemistryPolymer chemistryAdsorptionSoil scienceMetallurgyEnvironmental scienceMaterials scienceSoil waterMulticomponent Synthesis of HeterocyclesSynthesis and biological activitySynthesis and Characterization of Heterocyclic Compounds