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

被引:14
作者
Baj, Stefan [1 ]
Siewniak, Agnieszka [1 ]
机构
[1] Silesian Tech Univ, Chair Chem Organ Technol & Petrochem, PL-44100 Gliwice, Poland
关键词
Dialkyl peroxides; Hydroperoxides; Phase-transfer catalysts; Liquid-liquid-liquid PTC; BENZYL-CHLORIDE; 3RD-LIQUID PHASE; ETHER SYNTHESIS; SODIUM SULFIDE; O-ALKYLATION; SELECTIVITY; KINETICS; 3RD-PHASE; RATES; INTENSIFICATION;
D O I
10.1016/j.apcata.2010.07.015
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:208 / 213
页数:6
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