Metal-organic framework MOF-199 as an efficient heterogeneous catalyst for the aza-Michael reaction
- 作者：Lien T.L. Nguyen ; Tung T. Nguyen ; Khoa D. Nguyen ; Nam T.S. Phan ; ptsnam@hcmut.edu.vn
- 关键词：Metal&ndash ; organic framework ; MOF-199 ; aza-Michael reaction ; Heterogeneous catalyst ; Recyclable
- 刊名：Applied Catalysis A ; General
- 出版年：2012
- 期刊代码：4_0926860x
- 类别：ch
- 出版时间：28 May, 2012
- 卷：425-426
- 期：Complete
- 页码：44-52
- 文件大小：1470 K
摘要
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.