Paal–Knorr reaction catalyzed by metal–organic framework IRMOF-3 as an efficient and reusable heterogeneous catalyst

• Published in: Journal of molecular catalysis. A, Chemical Vol. 363-364; pp. 178 - 185
• Main Authors: Phan, Nam T.S., Nguyen, Tung T., Luu, Quang H., Nguyen, Lien T.L.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.11.2012; Elsevier
• Subjects: atomic absorption spectrometry; Catalysis; catalysts; catalytic activity; Chemistry; Colloidal state and disperse state; Exact sciences and technology; Fourier transform infrared spectroscopy; General and physical chemistry; Heterogeneous catalyst; IRMOF-3; Metal–organic framework; nitrates; nitrogen; Paal–Knorr reaction; Porous materials; Recyclable; scanning electron microscopes; scanning electron microscopy; Surface physical chemistry; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; thermogravimetry; transmission electron microscopy; X-ray diffraction; zinc; Metal–organic framework; Heterogeneous catalyst; Paal–Knorr reaction; IRMOF-3; Recyclable; Paal-Knorr reaction; Zinc nitrate; Porous material; Physisorption; Powder; Characterization; Degradation; Scanning microscope; Absorption; Amine; Metal organic framework; Scanning electron microscopy; Catalytic reaction; Transition element compounds; Reuse; Thermogravimetry; Nitrogen; Electron microscopy; Conversion; X ray diffraction; Infrared spectrometry; Heterogeneous catalysis; Transmission electron microscopy; Acids; Metal-organic framework; Spectrophotometry; Catalyst
• ISSN: 1381-1169; 1873-314X
• DOI: 10.1016/j.molcata.2012.06.007

[Display omitted] ► IRMOF-3 was synthesized and characterized. ► IRMOF-3 was used as catalyst for the Paal–Knorr reaction. ► High conversions were achieved using catalytic amounts of the IRMOF-3. ► The catalyst could be reused. A highly porous metal–organic framework (IRMOF-3) was synthesized from the reaction of zinc nitrate hexahydrate and 2-amino-1,4-benzenedicarboxylic acid by solvothermal method. Physical characterizations of the material were achieved by using a variety of different techniques, including X-ray powder diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR), atomic absorption spectrophotometry (AAS), and nitrogen physisorption measurements. The IRMOF-3 was used as an efficient heterogeneous catalyst for the Paal–Knorr reaction of benzyl amine with 2,5-hexanedione. Excellent conversions were obtained under mild conditions in the presence of 3mol% catalyst. The IRMOF-3 catalyst could be reused several times without a significant degradation in catalytic activity.