Selective sulfoxidation of aryl sulfides by coordinatively unsaturated metal centers in chromium carboxylate MIL-101

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• 作者：Young Kyu Hwang ; Do-Young Hong ; Jong-San Chang ; Hyejin Seo ; Minji Yoon ; Jinheung Kim ; Sung Hwa Jhung ; Christian Serre ; Gé ; rard Fé ; rey
• 关键词：Metal-organic frameworks (MOFs) ; Sulfoxidation ; Coordinatively unsaturated metal site (CUS) ; MIL-101 ; H₂O₂
• 刊名：Applied Catalysis A: General
• 出版年：2009
• 出版时间：1 May 2009
• 年：2009
• 卷：358
• 期：2
• 页码：249-253
• 全文大小：311 K

文摘

The nanoporous chromium carboxylate MIL-101 with coordinatively unsaturated chromium sites has been shown to be active in the sulfoxidation of aryl sulfides with H₂O₂ to selectively produce the corresponding sulfoxides. Interestingly, the electron-releasing groups in the oxygenation reaction of para-X-phenylmethyl sulfoxides (X-Ph-S-CH₃, X = CH₃, H, NO₂, and CN) enhanced the oxidation reactivity in 1:1 mixtures of X-Ph-S-CH₃:H-Ph-S-CH₃. Moreover, the ¹⁸O-labeled experiments to understand the source of oxygen in sulfoxide products proved that the oxygen atom in the sulfoxide product was entirely derived from H₂O₂.