Citation:
JING Tao, QIN Zhile, SONG Weiming, ZHAO Yunpeng, DENG Qigang. Synthesis,Characterization and Catalytic Performance Toward the Friedel-Crafts Acylation of Tributyltin Functionalized SBA-15[J]. Chinese Journal of Applied Chemistry,
;2013, 30(8): 945-950.
doi:
10.3724/SP.J.1095.2013.20580
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The organotin inorganic complexes(C4H9)3Sn-O-SBA-15[Bu3SnS]were successfully synthesized by grafting tributyltin on SBA-15 mesoporous molecular sieves in a nitrogen atmosphere. The composition,structure and properties of the samples were characterized by X-ray diffraction(XRD),transmittance electron microscopy(TEM),Hammett indicator method,N2 adsorption-desorption,solid nuclear magnetic resonance(NMR),in-situ pyridine infrared spectroscopy(Py-IR) and so on. The results show that the hexagonal P6 mm mesostructure of parent siliceous SBA-15 is maintained in Bu3SnS. The surface areas,proe size and volume of Bu3SnS are all deceased with the increase of acidity,compared to those of SBA-15. Friedel-Crafts acylation of anisole and benzoyl chloride can be efficiently catalyzed in the presence of Bu3SnS. The reaction conversion of anisole and the selectivity of p-benzoylanisole are 76.0% and 97.8%,respectively,when the molar ratio of anisole to benzoyl chloride is 0.5:1.0,the amount of catalyst is 6%,the reaction temperature is 130℃ and the reaction time is 5 h.
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