A shaped binderless and two binder‐containing ZSM‐11 zeolite catalysts were prepared and characterized by powder X‐ray diffraction, N2 adsorption‐desorption, and pyridine adsorption‐infrared measurements. The bin...A shaped binderless and two binder‐containing ZSM‐11 zeolite catalysts were prepared and characterized by powder X‐ray diffraction, N2 adsorption‐desorption, and pyridine adsorption‐infrared measurements. The binderless catalyst was synthesized using a dry‐gel conversion technique, inwhich 1,6‐hexanediamine and tetrabutylammonium bromide were used as structure‐directingagents and no other alkaline materials were added. The catalytic performance of the zeolites in the direct amination of isobutene to tert‐butylamine was evaluated in a fixed‐bed reactor. By virtue of its high crystallinity as well as its good mechanical strength, the shaped binderless ZSM‐11 catalyst showed a higher rate of formation of tert‐butylamine than did the binder‐containing catalysts.展开更多
The title compound N＇-tert-butylaminocarbonyl-N-2-chlorophenoxyacetylthiourea has been synthesized for the first time. Complete assignments were achieved by IR, ^1H NHR and single-crystal X-ray diffraction analyses. ...The title compound N＇-tert-butylaminocarbonyl-N-2-chlorophenoxyacetylthiourea has been synthesized for the first time. Complete assignments were achieved by IR, ^1H NHR and single-crystal X-ray diffraction analyses. The inhibitory rate of the cellular growth of K562 cells （chronic myeloid leukemic cells） was measured using MTT [3-（4,5-dimethylthiazo-2-yl）-2,5-diphenyltetra-zolium bromide] assay. The cell apoptosis was assessed by agarose gel electrophoresis to find that the title compound has antiproliferation and apoptosis inducing effects on K562 cells. In order to investigate the relationship between structure and activity of the target compound, we report its crystal structure and biological behavior in the present paper. Crystallographic data： C14H18^- CIN3O3S, Mr = 343.82, orthorhombic, space group Pnma, a = 19.786（6）, b = 6.789（2）, c = 12.938（4） A, V = 1738.0（9）A^3, Z = 4, Dc = 1.314 g/cm^3, F（000） = 720μ（MoKa） = 0.354 mm^-1, R = 0.0378 and wR = 0.0941. The molecule is a planar structure.展开更多
基金supported by K.C.Wong Education Foundation, Hong Kong (201611)Youth Innovation Promotion Association, CAS (20120155)~~
文摘A shaped binderless and two binder‐containing ZSM‐11 zeolite catalysts were prepared and characterized by powder X‐ray diffraction, N2 adsorption‐desorption, and pyridine adsorption‐infrared measurements. The binderless catalyst was synthesized using a dry‐gel conversion technique, inwhich 1,6‐hexanediamine and tetrabutylammonium bromide were used as structure‐directingagents and no other alkaline materials were added. The catalytic performance of the zeolites in the direct amination of isobutene to tert‐butylamine was evaluated in a fixed‐bed reactor. By virtue of its high crystallinity as well as its good mechanical strength, the shaped binderless ZSM‐11 catalyst showed a higher rate of formation of tert‐butylamine than did the binder‐containing catalysts.
基金This work was supported by the National Key Technologies R&D Programs of China (No. 2004BA308A22-8)
文摘The title compound N＇-tert-butylaminocarbonyl-N-2-chlorophenoxyacetylthiourea has been synthesized for the first time. Complete assignments were achieved by IR, ^1H NHR and single-crystal X-ray diffraction analyses. The inhibitory rate of the cellular growth of K562 cells （chronic myeloid leukemic cells） was measured using MTT [3-（4,5-dimethylthiazo-2-yl）-2,5-diphenyltetra-zolium bromide] assay. The cell apoptosis was assessed by agarose gel electrophoresis to find that the title compound has antiproliferation and apoptosis inducing effects on K562 cells. In order to investigate the relationship between structure and activity of the target compound, we report its crystal structure and biological behavior in the present paper. Crystallographic data： C14H18^- CIN3O3S, Mr = 343.82, orthorhombic, space group Pnma, a = 19.786（6）, b = 6.789（2）, c = 12.938（4） A, V = 1738.0（9）A^3, Z = 4, Dc = 1.314 g/cm^3, F（000） = 720μ（MoKa） = 0.354 mm^-1, R = 0.0378 and wR = 0.0941. The molecule is a planar structure.
