Selective benzylic oxidation of alkyl substituted aromatics to ketones over Ag/SBA-15 catalysts

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• 作者：Narani Anand ; Kannapu Hari Prasad Reddy ; Ganjala Venkata Siva Prasad ; Kamaraju Seetha Rama Rao ; David Raju Burri ; ^{david@iict.res.in}
• 关键词：Ag/SBA-15 catalysts ; Selective oxidation ; Alkyl aromatics ; Cycloalkanes
• 刊名：Catalysis Communications
• 出版年：2012
• 期刊代码：12_15667367
• 类别：ce
• 出版时间：5 June, 2012
• 卷：23
• 期：Complete
• 页码：5-9
• 文件大小：610 K

摘要

Benzylic and cycloalkane CH bonds have selectively been oxidized into corresponding ketones with t-BuOOH over Ag/SBA-15 catalysts, which were prepared by varying the loading of Ag (2, 4, 6 and 8%by weight) on SBA-15 support using an impregnation method. The retention of mesoporous structural ordering and crystalline behavior of Ag have been confirmed by N₂ adsorption and XRD studies. 4Ag/SBA-15 catalyst is found to be the best catalyst among the Ag/SBA-15 series. The influence of various parameters such as oxidant, solvent, temperature and time of reaction etc. have been systematically studied on Ag/SBA-15 catalyst.