Some examples of phase-transfer catalysis application in organochlorine chemistry

被引：9
|
作者：
Sirovski, FS [1 ]
机构：
[1] ND Zelinskii Organ Chem Inst, Moscow 117913, Russia
来源：
ORGANIC PROCESS RESEARCH & DEVELOPMENT | 1999年 / 3卷 / 06期
关键词：
D O I：
10.1021/op990041j
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Kinetics of phase-transfer catalysed (PTC'd) dehydrochlorination of the alpha-isomer of hexachlorocyclohexane in the presence of proton donors was investigated. Carboxylic acids and picric acid act as inhibitors, Benzyl alcohol strongly promotes the reaction. The plots of observed rate constants vs phenol and pentachlorophenol concentration have a bell-shaped form that was not observed before. An example of long-chain quats application in the synthesis of the ketamine anaesthetic intermediate by dehydrochlorination in dilute alkali is shown. Another application of phase-transfer catalysis (PTC) in organochlorine chemistry is the aqueous (sodium hypochlorite) chlorination of alkyl aromatic compounds. The results of m-phenoxytoluene chlorination and reaction kinetics in the presence of the polymeric crown are described.
引用
收藏
页码：437 / 441
页数：5
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