Journal
APPLIED CATALYSIS A-GENERAL
Volume 425, Issue -, Pages 44-52Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2012.02.045
Keywords
Metal-organic framework; MOF-199; aza-Michael reaction; Heterogeneous catalyst; Recyclable
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Funding
- Ho Chi Minh City Department of Science and Technology (Viet Nam)
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A highly porous metal-organic framework (MOF-199) was synthesized from the reaction of copper nitrate trihydrate and 1,3,5-benzenetricarboxylic acid by solvothermal method, and used as a recyclable acid catalyst for the aza-Michael reaction. Physical characterizations of the solid catalyst 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), dynamic laser light scattering (DLS), atomic absorption spectrophotometry (MS), and nitrogen physisorption measurements. Excellent conversions were achieved under mild conditions in the presence of 5 mol% catalyst. The MOF-199 catalyst could be reused several times without a significant degradation in catalytic activity. No contribution from homogeneous catalysis of active species leaching into the liquid phase was detected. (C) 2012 Elsevier B.V. All rights reserved.
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