Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/9292
Título: Synthesis of azobenzene dyes mediated by cotA laccase
Autor: Sousa, Ana Catarina
Baptista, Sara R.
Martins, Lígia O.
Robalo, Maria Paula
Palavras-chave: Biocatalysis
Dyes/pigments
Green chemistry
Laccases
Oxidative coupling
Data: 4-Jan-2019
Editora: Wiley-VCH Verlag
Citação: SOUSA, Ana Catarina; [et al] – Synthesis of azobenzene dyes mediated by cotA laccase. Chemistry - an Asian Journal. ISSN 1861-471X. Vol. 14, N.º 1 (2019), pp. 187-193
Resumo: An eco-friendly protocol for the synthesis of azobenzene dyes by oxidative coupling of primary aromatic amines is reported. As efficient biocatalytic systems, CotA laccase and CotA laccase/ABTS (2,2’-azinobis(3-ethylbenzo-thiazoline-6-sulfonic acid)) enablethe oxidation of various substituted anilines, in aqueous medium, ambient atmosphere and under mild reaction conditions of pH and temperature. A series of azobenzene dyes were prepared in good to excellent yields in an one-potreaction. Amechanistic proposal for the formation of the azoderivatives is presented. Our strategy offers an alternative approach for the direct synthesis of azobenzene dyes, avoiding the harsh conditions generally required formost of the traditional synthetic methods.
Peer review: yes
URI: http://hdl.handle.net/10400.21/9292
DOI: https://doi.org/10.1002/asia.201801450
ISSN: 1861-4728
1861-471X
Versão do Editor: https://onlinelibrary.wiley.com/doi/epdf/10.1002/asia.201801450
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos

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