School of Chemical and Biomolecular Engineering, Pusan National University, Busan 609-735, Korea.
Dalton Trans. 2012 Dec 14;41(46):14204-10. doi: 10.1039/c2dt31571h. Epub 2012 Oct 12.
We approach a green method in the production of alkylaromatic ketones over hexagonally ordered mesoporous CrSBA-15 catalysts, which were used, in green routes, in the liquid-phase oxidation of alkylaromatics. A promising chemical treatment method was used with ammonium acetate solution to remove the toxic nature of non-framework chromium oxides deposited on the surface of calcined CrSBA-15(8), and the obtained green mesoporous CrSBA-15(8) catalyst was used to find its catalytic activity while the recyclability of mesoporous CrSBA-15 catalysts was also studied. Particularly, the mesoporous CrSBA-15 catalysts synthesized with a variety of chromium contents were extensively used in the production of acetophenone (AP=O) with various reaction parameters. On the basis of all catalytic results, the mesoporous CrSBA-15(8) catalyst produced a higher selectivity of alkylaromatic ketones (76-100%) as compared to other CrSBA-15 catalysts and was found to be a highly active, recyclable and promising heterogeneous catalyst for selective synthesis of alkylaromatic ketones.
我们采用一种绿色方法，在六方有序介孔 CrSBA-15 催化剂上生产烷基芳烃酮，这些催化剂在绿色路线中用于烷基芳烃的液相氧化。采用一种有前途的化学处理方法，用乙酸铵溶液去除沉积在煅烧 CrSBA-15(8)表面的有毒非骨架氧化铬。所得的绿色介孔 CrSBA-15(8)催化剂被用于发现其催化活性，同时还研究了介孔 CrSBA-15 催化剂的可回收性。特别是，用各种铬含量合成的介孔 CrSBA-15 催化剂被广泛用于在各种反应参数下生产乙酰苯（AP=O）。基于所有的催化结果，与其他 CrSBA-15 催化剂相比，介孔 CrSBA-15(8)催化剂生产的烷基芳烃酮的选择性更高（76-100%），并被发现是一种高效、可回收和有前途的用于选择性合成烷基芳烃酮的多相催化剂。
