Electrochemical dehalogenation reaction of DDT mediated by hydrophobic vitamin B12

Yoshio Hisaeda, Hisashi Shimakoshi, Mami Tokunaga, Tatsushi Baba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The controlled-potential electrolysis of 1,1-bis(4-chlorophenyl)-2,2,2- trichloroethane (DDT) was carried out in the presence of a hydrophobic vitamin B12, heptamethyl cobyrinate perchlorate. DDT was dechlorinated to form 1,1-bis(4-chlorophenyl)-2,2-dichloroethane (DDD), 1,1-bis(4-chlorophenyl)- 2,2-dichloroethylene (DDE), 1-chloro-2,2-bis(4-chlorophenyl)ethylene (DDMU) and 1,1,4,4-tetrakis(4-chlorophenyl)-2,3-dichloro-2-butene (TTDB) (E/Z), and quantitative recovery of the catalyst after the electrolysis was confirmed by the electronic spectroscopy. A photo-sensitive intermediate having a cobalt-carbon bond formed during the electrolysis was characterized by the electronic spectroscopy. The mechanism for the formation of various dehalogenated products was investigated by various spectroscopic methods.

Original languageEnglish
Title of host publicationAnalytical, Mechanistic, and Synthetic Organic Electrochemistry - The Sixth International Manuel M. Baizer Symposium in Honor of Dennis H. Evans and Masao Tokuda
EditorsJ. Lessard, P. Hapiot, I. Taniguchi
Pages13-16
Number of pages4
Volume10
Publication statusPublished - 2004
EventAnalytical, Mechanistic, and Synthetic Organic Electrochemistry - The Sixth International Manuel M. Baizer Symposium in Honor of Dennis H. Evans and Masao Tokuda - San Antonio, TX, United States
Duration: May 9 2004May 14 2004

Other

OtherAnalytical, Mechanistic, and Synthetic Organic Electrochemistry - The Sixth International Manuel M. Baizer Symposium in Honor of Dennis H. Evans and Masao Tokuda
CountryUnited States
CitySan Antonio, TX
Period5/9/045/14/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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