کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
50723 | 46811 | 2014 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Highly efficient selective oxidation of sulfides to sulfoxides by montmorillonite-immobilized metalloporphyrins in the presence of molecular oxygen Highly efficient selective oxidation of sulfides to sulfoxides by montmorillonite-immobilized metalloporphyrins in the presence of molecular oxygen](/preview/png/50723.png)
• Immobilized metalloporphyrins was used as catalyst in the oxidation of sulfides.
• Manganese porphyrin is more selective than cobalt and iron porphyrin catalysts.
• Catalyst could be reused consecutively five times without loss of activity.
Highly efficient and selective oxidation of sulfides to sulfoxides with dioxygen catalyzed by cationic meso-tetrakis (1-methyl-4-pyridyl) (TM4PyP) metalloporphyrins immobilized into montmorillonite (MT) interlayer was achieved. Manganese (II) porphyrin (MnTM4PyP-MT) presented excellent activity for the oxidation of sulfides under ambient conditions. In the model oxidation, thioanisole was converted completely and the selectivity towards sulfoxide was up to 95%. This catalyst also showed high activity and selectivity for the most sulfides. The catalyst could be reused consecutively five times without significant loss of activity.
Journal: Catalysis Communications - Volume 53, 5 August 2014, Pages 29–32