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Article: σ-Thienyl complexes of palladium(II), trans-PdBr(C4H4-nBrn-1S-C)(PPh3)2(n = 1-4), from oxidative addition of bromothiophenes to Pd(PPh3)4. X-ray structural identification of key intermediates of catalytic debromination of 2-bromothiophene and tetrabromothiophene

Titleσ-Thienyl complexes of palladium(II), trans-PdBr(C4H4-nBrn-1S-C)(PPh3)2(n = 1-4), from oxidative addition of bromothiophenes to Pd(PPh3)4. X-ray structural identification of key intermediates of catalytic debromination of 2-bromothiophene and tetrabromothiophene
Authors
KeywordsPalladium
Reduction
Crystal structures
Catalysis
Bromothiophenes
σ-Thienyl
Oxidative addition
Issue Date1997
Citation
Journal of Organometallic Chemistry, 1997, v. 531, n. 1-2, p. 175-181 How to Cite?
AbstractOxidative addition reactions of Pd(PPh3)4 with bromothiophenes C4H4-nBrnS (n = 1-4) occur readily at RT to give σ-thienyl complexes trans-PdBr(C4H4-nBrn-1S-C)(PPh3)2 in yields ≥ 85%. The products are intermediates in the regioselective reduction of bromothiophenes catalyzed by Pd(0). Palladation invariably occurs at the carbon adjacent to the thienyl sulfur. Single crystal X-ray crystallographic determination was carried out on PdBr(2-thienyl)(PPh3)2, 1, and PdBr(3,4,5-tribromo-2-thienyl)(PPh3)2, 6. Crystal data for 1: space group Pbcn, a =19.354(1), b = 10.160(1), c = 16.451(1)Å, Z = 4, 3106 reflections, R = 0.0614; for 6: space group P21/n, a = 11.361(2), b = 13.049(3), c = 26.670(5)Å, β = 102.00(3)°, Z = 4, 3577 reflections, R = 0.0375. Reduction of PdBr(3,4-dibromo-2-thienyl)(PPh3)2, 5, by NaBH4 gives 2,3-dibromothiophene.
Persistent Identifierhttp://hdl.handle.net/10722/219427
ISSN
2015 Impact Factor: 2.336
2015 SCImago Journal Rankings: 0.732

 

DC FieldValueLanguage
dc.contributor.authorXie, Yang-
dc.contributor.authorNg, S. C.-
dc.contributor.authorWu, Bo Mu-
dc.contributor.authorXue, Feng-
dc.contributor.authorMak, Thomas C W-
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.citationJournal of Organometallic Chemistry, 1997, v. 531, n. 1-2, p. 175-181-
dc.identifier.issn0022-328X-
dc.identifier.urihttp://hdl.handle.net/10722/219427-
dc.description.abstractOxidative addition reactions of Pd(PPh3)4 with bromothiophenes C4H4-nBrnS (n = 1-4) occur readily at RT to give σ-thienyl complexes trans-PdBr(C4H4-nBrn-1S-C)(PPh3)2 in yields ≥ 85%. The products are intermediates in the regioselective reduction of bromothiophenes catalyzed by Pd(0). Palladation invariably occurs at the carbon adjacent to the thienyl sulfur. Single crystal X-ray crystallographic determination was carried out on PdBr(2-thienyl)(PPh3)2, 1, and PdBr(3,4,5-tribromo-2-thienyl)(PPh3)2, 6. Crystal data for 1: space group Pbcn, a =19.354(1), b = 10.160(1), c = 16.451(1)Å, Z = 4, 3106 reflections, R = 0.0614; for 6: space group P21/n, a = 11.361(2), b = 13.049(3), c = 26.670(5)Å, β = 102.00(3)°, Z = 4, 3577 reflections, R = 0.0375. Reduction of PdBr(3,4-dibromo-2-thienyl)(PPh3)2, 5, by NaBH4 gives 2,3-dibromothiophene.-
dc.languageeng-
dc.relation.ispartofJournal of Organometallic Chemistry-
dc.subjectPalladium-
dc.subjectReduction-
dc.subjectCrystal structures-
dc.subjectCatalysis-
dc.subjectBromothiophenes-
dc.subjectσ-Thienyl-
dc.subjectOxidative addition-
dc.titleσ-Thienyl complexes of palladium(II), trans-PdBr(C4H4-nBrn-1S-C)(PPh3)2(n = 1-4), from oxidative addition of bromothiophenes to Pd(PPh3)4. X-ray structural identification of key intermediates of catalytic debromination of 2-bromothiophene and tetrabromothiophene-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0031569211-
dc.identifier.volume531-
dc.identifier.issue1-2-
dc.identifier.spage175-
dc.identifier.epage181-

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