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Tri-liquid system in the synthesis of dialkyl peroxides using tetraalkylammonium salts as phase-transfer catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
41985 45906 2010 6 PDF Available
Title
Tri-liquid system in the synthesis of dialkyl peroxides using tetraalkylammonium salts as phase-transfer catalysts
Abstract

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.

Graphical abstractFigure optionsDownload full-size imageDownload 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.

Keywords
Dialkyl peroxides; Hydroperoxides; Phase-transfer catalysts; Liquid–liquid–liquid PTC
First Page Preview
Tri-liquid system in the synthesis of dialkyl peroxides using tetraalkylammonium salts as phase-transfer catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 385, Issues 1–2, 15 September 2010, Pages 208–213
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis