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Campo Dublin Core | Valor | Idioma |
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dc.contributor.author | Gonçalves, Fernanda Jorge | - |
dc.contributor.author | Kamal, Fadwa | - |
dc.contributor.author | Gaucher, Anne | - |
dc.contributor.author | Gil, Richard | - |
dc.contributor.author | Bourdreux, Flavien | - |
dc.contributor.author | Martineau Corcos, Charlotte | - |
dc.contributor.author | Gurgel, Leandro Vinícius Alves | - |
dc.contributor.author | Gil, Laurent Frédéric | - |
dc.contributor.author | Prim, Damien | - |
dc.date.accessioned | 2019-05-07T14:27:21Z | - |
dc.date.available | 2019-05-07T14:27:21Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | GONÇALVES, F. J. et al. Synthesis, characterisation and application of pyridine-modified chitosan derivatives for the first non-racemic Cu-catalysed Henry reaction. Carbohydrate Polymers, v. 181, p. 1206-1212, fev. 2018. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0144861717314091>. Acesso em: 05 abr. 2019. | pt_BR |
dc.identifier.issn | 0144-8617 | - |
dc.identifier.uri | http://www.repositorio.ufop.br/handle/123456789/11214 | - |
dc.description.abstract | The preparation, characterisation and application of two pyridine-modified chitosan derivatives (C1 and C2) containing Cu(OAc)2 adsorbed as catalysts for the conversion of benzaldehyde into 2-nitro-1-phenylethanol are described. Quantitative solid-state 13C multiple-contact cross-polarization, magic-angle-spinning, nuclear magnetic resonance (MC-CP MAS NMR) measurements confirmed the successful grafting of 2-pyridinecarboxaldehyde and 6-methylpyridine-2-carboxaldehyde to the chitosan backbone and indicated that 47(±2)% of the NH2 groups were grafted for both C1 and C2. The use of C1-Cu(OAc)2 as a catalyst in the nitroaldol reaction led to 96(±1)% conversion and 19(±4)% enantiomeric excess (ee), while the use of C2-Cu(OAc)2 as a catalyst also promoted the nitroaldol reaction, affording almost quantitatively the expected 2-nitro-1-phenylethanol (98(±1)%) with 14.5(±1.5)% ee. | pt_BR |
dc.language.iso | en_US | pt_BR |
dc.rights | restrito | pt_BR |
dc.subject | Solid-state 13C NMR | pt_BR |
dc.subject | Heterogeneous catalysis | pt_BR |
dc.subject | Copper | pt_BR |
dc.title | Synthesis, characterisation and application of pyridine-modified chitosan derivatives for the first non-racemic Cu-catalysed Henry reaction. | pt_BR |
dc.type | Artigo publicado em periodico | pt_BR |
dc.identifier.uri2 | https://www.sciencedirect.com/science/article/pii/S0144861717314091 | pt_BR |
dc.identifier.doi | https://doi.org/10.1016/j.carbpol.2017.12.012 | pt_BR |
Aparece nas coleções: | DEQUI - Artigos publicados em periódicos |
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ARTIGO_SynthesisCharacterisationApplication.pdf Restricted Access | 1,3 MB | Adobe PDF | Visualizar/Abrir |
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