40339-35-3Relevant articles and documents
An environmentally friendly approach to the green synthesis of azo dyes with aryltriazenes via ionic liquid promoted C-N bonds formation
Zhang, Yonghong,Liu, Yonghong,Ma, Xiaoqian,Ma, Xia,Wang, Bin,Li, Hongguang,Huang, Yan,Liu, Chenjiang
, p. 438 - 444 (2018/06/14)
An efficient and green approach for the synthesis of azo dyes has been developed via the Br?nsted acidic ionic liquid (IL) promoted diazo coupling reaction of naphthols with aryltriazenes. The reaction was carried out with the aryltriazenes as diazotizing
A green alternative to synthetize azo compounds
Velasco, Manuel I.,Kinen, Claudio O.,Hoyos De Rossi, Rita,Rossi, Laura I.
experimental part, p. 259 - 264 (2012/01/04)
Different nitrates were used as sources of nitrosonium ion to obtain diazonium salts. Diverse azo compounds were synthetized in acetonitrile giving very good yields and free of by-products in comparison with traditional synthesis. Among the tested species, the best combination for para red synthesis was nitric acid and gaseous hydrogen chloride.
Solid state photolysis of triazene 1-oxides with naphthols. Synthesis of azo dyes
Mohamed, Shaaban K.,Nour El-Din
, p. 508 - 509 (2007/10/03)
Sunlight irradiation of solid mixed crystals of the photolabile triazene 1-oxides and α- or β-naphthol afford azo dyes.
