ELECTROSYNTHESIS IN SYSTEMS OF 2 IMMISCIBLE LIQUIDS AND A PHASE-TRANSFER CATALYST .6. THE INFLUENCE OF ZINC-CHLORIDE ON THE CHLORINATION OF NAPHTHALENE

被引:6
作者
IBRISAGIC, Z [1 ]
PLETCHER, D [1 ]
BROOKS, WN [1 ]
HEALY, KP [1 ]
机构
[1] ICI PLC,NEW SCI GRP,RUNCORN WA7 4QE,CHESHIRE,ENGLAND
关键词
CATALYSTS; -; ELECTROLYSIS; NAPHTHALENE; Chlorination;
D O I
10.1007/BF00620568
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The influence of zinc chloride on the chlorination of naphthalene by electrolysis in a water-methylene chloride emulsion and using tetrabutylammonium ion as a phase transfer catalyst is described. It is shown that when the aqueous medium contains both NaCl and ZnCl//2 it is the anion ZnCl//4**2** minus which transfers into the organic phase and it is confirmed that the presence of ZnCl//2 in the electrolyte is, indeed, beneficial. The electrolyses have been carried out in both divided and undivided cells and in both the organic yield of 1-chloronaphthalene can exceed 80% but the former is better from the viewpoint of speed of electrolysis; in the divided cell, the conversion was 85% (cf. typically 60% in the undivided cell) after the passage of 2. 3 F mol** minus **1 of naphthalene. Possible mechanisms for the effect of ZnCl//2 are discussed.
引用
收藏
页码:719 / 725
页数:7
相关论文
共 5 条
[1]   ELECTROSYNTHESIS IN SYSTEMS OF 2 IMMISCIBLE LIQUIDS AND A PHASE-TRANSFER CATALYST .5. THE ANODIC CHLORINATION OF NAPHTHALENE [J].
ELLIS, SR ;
PLETCHER, D ;
BROOKS, WN ;
HEALY, KP .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 1983, 13 (06) :735-741
[2]  
ELLIS SR, 1983, THESIS U SOUTHAMPTON
[3]   HEXAFLUOROPHOSPHATE OF BIS(NAPHTHALENE) RADICAL CATION [J].
FRITZ, HP ;
GEBAUER, H ;
FRIEDRICH, P ;
SCHUBERT, U .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1978, 17 (04) :275-276
[4]  
FRITZ HP, 1978, Z NATURFORSCH B, V33, P498
[5]   ANODIC CHLORINATION OF SUBSTITUTED BENZENES - CHOICE OF THE CHLORINATION REAGENTS [J].
GOURCY, J ;
SIMONET, J ;
JACCAUD, M .
ELECTROCHIMICA ACTA, 1979, 24 (09) :1039-1046