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Article: Room-temperature hydrodebromination of 4,4'-dibromobiphenyl catalyzed by 1,1'-bis(diphenylphosphino) ferrocene complexes of palladium

TitleRoom-temperature hydrodebromination of 4,4'-dibromobiphenyl catalyzed by 1,1'-bis(diphenylphosphino) ferrocene complexes of palladium
Authors
KeywordsDebromination
Ferrocenyl phosphine
Reduction
Biphenyl
Bromobiphenyls
Palladiu
Issue Date1998
Citation
Journal of Molecular Catalysis A: Chemical, 1998, v. 132, n. 2-3, p. 223-229 How to Cite?
AbstractHydrodebromination of 4,4'-dibromobiphenyl to 4-bromobiphenyl and biphenyl was studied by using a variety of metal complexes of Ru(II), Ni(II), Pd(II), Pt(II) and Cu(I) under different ligand environments. Palladium complexes are most effective in giving biphenyl whereas other complexes give 4-bromobiphenyl. 1,1'-Bis(dipbenylphosphino)ferrocene (dppf) is the best phosphine ligand whereas NaBH4 and N,N,N',N'-tetramethylethylenediamine are the best reductant and base, respectively. The use of catalytic PdCl2(CH3CN)2 and PdCl2(dppf) gives 4-bromobiphenyl (86%) and bipbenyl (100%) respectively. PdCl2(dppf) is effective even at a low concentration of 3.5 mol.% and at room temperature (r.t.) with a short reaction time (10 min) and performs better than Pd on charcoal (5%). It also leads to a complete breakdown of 4-monobromobiphenyl and decabromobiphenyl giving 100% of biphenyl in 4 min and 40 h, respectively.
Persistent Identifierhttp://hdl.handle.net/10722/219431
ISSN
2015 Impact Factor: 3.958
2015 SCImago Journal Rankings: 1.072

 

DC FieldValueLanguage
dc.contributor.authorWei, Bing-
dc.contributor.authorHor, T. S Andy-
dc.date.accessioned2015-09-23T02:57:03Z-
dc.date.available2015-09-23T02:57:03Z-
dc.date.issued1998-
dc.identifier.citationJournal of Molecular Catalysis A: Chemical, 1998, v. 132, n. 2-3, p. 223-229-
dc.identifier.issn1381-1169-
dc.identifier.urihttp://hdl.handle.net/10722/219431-
dc.description.abstractHydrodebromination of 4,4'-dibromobiphenyl to 4-bromobiphenyl and biphenyl was studied by using a variety of metal complexes of Ru(II), Ni(II), Pd(II), Pt(II) and Cu(I) under different ligand environments. Palladium complexes are most effective in giving biphenyl whereas other complexes give 4-bromobiphenyl. 1,1'-Bis(dipbenylphosphino)ferrocene (dppf) is the best phosphine ligand whereas NaBH4 and N,N,N',N'-tetramethylethylenediamine are the best reductant and base, respectively. The use of catalytic PdCl2(CH3CN)2 and PdCl2(dppf) gives 4-bromobiphenyl (86%) and bipbenyl (100%) respectively. PdCl2(dppf) is effective even at a low concentration of 3.5 mol.% and at room temperature (r.t.) with a short reaction time (10 min) and performs better than Pd on charcoal (5%). It also leads to a complete breakdown of 4-monobromobiphenyl and decabromobiphenyl giving 100% of biphenyl in 4 min and 40 h, respectively.-
dc.languageeng-
dc.relation.ispartofJournal of Molecular Catalysis A: Chemical-
dc.subjectDebromination-
dc.subjectFerrocenyl phosphine-
dc.subjectReduction-
dc.subjectBiphenyl-
dc.subjectBromobiphenyls-
dc.subjectPalladiu-
dc.titleRoom-temperature hydrodebromination of 4,4'-dibromobiphenyl catalyzed by 1,1'-bis(diphenylphosphino) ferrocene complexes of palladium-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S1381-1169(97)00274-4-
dc.identifier.scopuseid_2-s2.0-0032526306-
dc.identifier.volume132-
dc.identifier.issue2-3-
dc.identifier.spage223-
dc.identifier.epage229-

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