Synthesis of Azobenzene Dyes Mediated by CotA Laccase,Chemistry - An Asian Journal

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Synthesis of Azobenzene Dyes Mediated by CotA Laccase
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-11-27 , DOI: 10.1002/asia.201801450
Ana Catarina Sousa _{1,

2} , Sara R. Baptista ₁ , Lígia O. Martins ₃ , M. Paula Robalo _{1,

2}

Affiliation

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‐ethylbenzothiazoline‐6‐sulfonic acid)) enable the 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‐pot reaction. A mechanistic proposal for the formation of the azo derivatives is presented. Our strategy offers an alternative approach for the direct synthesis of azobenzene dyes, avoiding the harsh conditions generally required for most of the traditional synthetic methods.

中文翻译：

CotA漆酶介导的偶氮苯染料的合成

据报道，通过伯芳香胺的氧化偶联合成偶氮苯染料的环保方案。作为有效的生物催化系统，CotA漆酶和CotA漆酶/ ABTS（2,2'-叠氮基双（3-乙基苯并噻唑啉-6-磺酸））能够在水性介质，环境气氛中和温和的反应条件下氧化各种取代的苯胺。 pH和温度。在单锅反应中，制备了一系列偶氮苯染料，其收率好至极好。提出了形成偶氮衍生物的机制建议。我们的策略为直接合成偶氮苯染料提供了另一种方法，从而避免了大多数传统合成方法通常需要的苛刻条件。

更新日期：2018-11-27

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