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DC Field | Value | Language |
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dc.contributor.author | Kunrath, F. A. | - |
dc.contributor.author | de Souza, R. F. | - |
dc.contributor.author | Casagrande, O. L. | - |
dc.contributor.author | Brooks, N. R. | - |
dc.contributor.author | Young, V. G. | - |
dc.date.accessioned | 2014-05-20T15:29:43Z | - |
dc.date.accessioned | 2016-10-25T18:04:58Z | - |
dc.date.available | 2014-05-20T15:29:43Z | - |
dc.date.available | 2016-10-25T18:04:58Z | - |
dc.date.issued | 2003-11-10 | - |
dc.identifier | http://dx.doi.org/10.1021/om034035u | - |
dc.identifier.citation | Organometallics. Washington: Amer Chemical Soc, v. 22, n. 23, p. 4739-4743, 2003. | - |
dc.identifier.issn | 0276-7333 | - |
dc.identifier.uri | http://hdl.handle.net/11449/39233 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/39233 | - |
dc.description.abstract | The reaction of TlTp' (Tp' = HB(3-mesitylpyrazolyl)(3)(-) (Tp(Ms)), HB(3-mesitylpyrazolyl)(2)(5-mesitylpyrazolyl)(-) (Tp(Ms)*)) with NiCl(2).6H(2)O affords Tp(Ms)NiCl (1) and Tp(Ms)*NiCl (2) in good yield. The compound 2 undergoes an isomerization process to form [{Tp(Ms)**}NiCl](2) (3) (Tp(Ms)** = HB(5-mesitylpyrazolyl)(2)(3-mesitylpyrazolyl)(-)) in 68% yield. Treatment of the tris(pyrazolyl)-borate nickel compounds 1 and 2 with alkylaluminum cocatalysts such as methylalumoxane (MAO) and trimethylaluminum (TMA) in toluene generates active catalysts for ethylene oligomerization. The compound 1 shows turnover frequencies in the range of (2.2-43.1) x 10(3) h(-1). Oligomerization reaction conditions can be adjusted that lead to selectivities as high as 81% for butene-1. | en |
dc.format.extent | 4739-4743 | - |
dc.language.iso | eng | - |
dc.publisher | Amer Chemical Soc | - |
dc.source | Web of Science | - |
dc.title | Highly selective nickel ethylene oligomerization catalysts based on sterically hindered tris(pyrazolyl)borate ligands | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidade Federal do Rio Grande do Sul (UFRGS) | - |
dc.contributor.institution | Univ Minnesota | - |
dc.description.affiliation | Univ Estadual Paulista, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil | - |
dc.description.affiliation | Univ Fed Rio Grande do Sul, Inst Quim, Lab Catalise Mol, BR-90501970 Porto Alegre, RS, Brazil | - |
dc.description.affiliation | Univ Minnesota, Dept Chem, Xray Crystallog Lab, Minneapolis, MN 55455 USA | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, Inst Quim Araraquara, BR-14800900 Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.1021/om034035u | - |
dc.identifier.wos | WOS:000186401300021 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Organometallics | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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