• metal–organic framework mof-199 as an efficient heterogeneous catalyst for the aza-michael reaction

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1308
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     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 (aas), 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.

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