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Conference Paper: Debromination of 1,4-dibromobenzene and 4,4'-dibromobiphenyl: A model for cleansing of PCBs

TitleDebromination of 1,4-dibromobenzene and 4,4'-dibromobiphenyl: A model for cleansing of PCBs
Authors
Issue Date1997
Citation
Environmental Monitoring and Assessment, 1997, v. 44, n. 1-3, p. 481-485 How to Cite?
AbstractThe aim of this study is to develop a. catalytic method which has advantages over current methods to detoxify and degrade environmentally harmful polychlorinated biphenyls (PCBs). A variety of catalysts have been employed in a preliminary study on 1,4-dibromobenzene and 4,4'-dibromobiphenyl which may be considered to represent simple analogues of PCBs. The most satisfactory catalysts are those involving (Pd(dppf)] [dppf = 1,1'-bis(diphenylphosphino)ferrocene], generated in situ from PdCl2(dppf) or Pd(dppf)2. In the presence of the reducing reagent, namely NaBH4, debromination has been achieved at relative mild conditions with high product yields (> 70%). Thus, our results indicate the possibility of dechlorination of PCBs with such catalysts.
Persistent Identifierhttp://hdl.handle.net/10722/219424
ISSN
2015 Impact Factor: 1.633
2015 SCImago Journal Rankings: 0.634

 

DC FieldValueLanguage
dc.contributor.authorLi, Sihai-
dc.contributor.authorNgew, Huang Shin-
dc.contributor.authorChan, S. O Hardy-
dc.contributor.authorNg, Siu Choon-
dc.contributor.authorLee, Hian Kee-
dc.contributor.authorHor, T. S Andy-
dc.date.accessioned2015-09-23T02:57:02Z-
dc.date.available2015-09-23T02:57:02Z-
dc.date.issued1997-
dc.identifier.citationEnvironmental Monitoring and Assessment, 1997, v. 44, n. 1-3, p. 481-485-
dc.identifier.issn0167-6369-
dc.identifier.urihttp://hdl.handle.net/10722/219424-
dc.description.abstractThe aim of this study is to develop a. catalytic method which has advantages over current methods to detoxify and degrade environmentally harmful polychlorinated biphenyls (PCBs). A variety of catalysts have been employed in a preliminary study on 1,4-dibromobenzene and 4,4'-dibromobiphenyl which may be considered to represent simple analogues of PCBs. The most satisfactory catalysts are those involving (Pd(dppf)] [dppf = 1,1'-bis(diphenylphosphino)ferrocene], generated in situ from PdCl2(dppf) or Pd(dppf)2. In the presence of the reducing reagent, namely NaBH4, debromination has been achieved at relative mild conditions with high product yields (> 70%). Thus, our results indicate the possibility of dechlorination of PCBs with such catalysts.-
dc.languageeng-
dc.relation.ispartofEnvironmental Monitoring and Assessment-
dc.titleDebromination of 1,4-dibromobenzene and 4,4'-dibromobiphenyl: A model for cleansing of PCBs-
dc.typeConference_Paper-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1023/A:1005778000670-
dc.identifier.scopuseid_2-s2.0-0031080375-
dc.identifier.volume44-
dc.identifier.issue1-3-
dc.identifier.spage481-
dc.identifier.epage485-

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