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Electroreduction of Polychlorobenzenes Using Either Lead or Copper Electrodes
Author(s) -
Lin ShawTao,
Chao Richard YungHo,
Lin SunChe,
Lin ShuFan
Publication year - 2002
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200200084
Subject(s) - chemistry , chlorine , copper , chlorine atom , standard enthalpy change of formation , benzene , electrode , enthalpy , medicinal chemistry , electrochemistry , inorganic chemistry , standard enthalpy of formation , organic chemistry , physics , quantum mechanics
Polychlorobenzenes can be reduced electrolytically to dichlorobenzenes by using either lead or copper as the electrodes in a MeOH/THF solution. Among the resultants of dichlorobenzenes, 1,4‐dichlorobenzene is a major product that might be due to a low enthalpy of formation. A chlorine atom situated at the ortho position of another chlorine atom in the benzene ring is removed prior to others. However, the sequence of reactivities of the polychlorobenzenes for electroreducing by lead electrodes in this study is as follows: 1,2,3,4‐C 6 H 2 Cl 4 > 1,3,5‐C 6 H 3 Cl 3 > C 6 HCl 5 ∼ 1,2,4,5‐C 6 H 2 Cl 4 > 1,2,3,5‐C 6 H 2 Cl 4 ∼ 1,2,3‐C 6 H 3 Cl 3 > 1,2,4‐C 6 H 3 Cl 3 >C 6 Cl 6 .