کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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41985 | 45906 | 2010 | 6 صفحه PDF | دانلود رایگان |
A highly effective method to synthesise dialkyl peroxides from alkyl hydroperoxides and alkyl bromides in a liquid–liquid–liquid system using tetraalkylammonium salts as phase-transfer catalysts is reported. This process was conducted in the presence of highly concentrated aqueous KOH solutions and cyclohexane as an organic solvent. In a liquid–liquid–liquid system, the phase-transfer catalyst forms an insoluble third-liquid phase between the organic and aqueous phases that enables the catalyst to be recycled multiple times. Dialkyl peroxides were obtained in high yields and with 100% selectivity.
Figure optionsDownload high-quality image (18 K)Download as PowerPoint slideResearch highlights▶ A highly effective method for synthesis of dialkyl peroxides in a tri-liquid system. ▶ Tetraalkylammonium salts – phase-transfer catalysts – form a third-liquid phase. ▶ Dialkyl peroxides are obtained in high yields and with 100% selectivity. ▶ Phase-transfer catalyst can be easily recovered and recycled multiple times.
Journal: Applied Catalysis A: General - Volume 385, Issues 1–2, 15 September 2010, Pages 208–213