|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|49763||46765||2016||3 صفحه PDF||ندارد||دانلود رایگان|
• β-Mo8O26 based alkyl imidazolium and pyridinium salts were used as catalysts for the oxidation of sulfides.
• A high selectivity towards either sulfoxides or sulfones can be nicely controlled.
• The catalysts can be recycled and reused for several runs without significant loss of activity.
β-Mo8O26 based alkyl imidazolium and pyridinium salts of general formula [Bmim]4Mo8O26 (Bmim = 1-butyl-3-methylimidazolium), [Hmim]4Mo8O26 (Hmim = 1-hexyl-3-methylimidazolium), [Dhmim]4Mo8O26 (Dhmim = 1.2-dimethyl-3-hexylimidazolium) and [Hpy]4Mo8O26 (Hpy = 1-hexylpyridinium) have been used as catalysts for the oxidation of sulfides using 30% hydrogen peroxide as oxidant. The examined β-Mo8O26 salts prove to be highly active and are self-separating. A high selectivity towards either sulfoxides or sulfones can be nicely controlled by variation of the reaction conditions. In both cases, the catalysts can be recycled and reused for several times without significant loss of activity, representing a good stability of the catalysts.
Graphical abstractβ-Mo8O26 based alkylimidazolium and alkylpyridinium salts are used as green and efficient self-separating catalysts for highly selective oxidation of sulfides to sulfoxides or sulfone with hydrogen peroxide.Figure optionsDownload full-size imageDownload as PowerPoint slide
Journal: Catalysis Communications - Volume 81, 5 June 2016, Pages 1–3