A green alternative to synthetize azo compounds

作者：Velasco Manuel I; Kinen Claudio O; Hoyos de Rossi Rita; Rossi Laura I^*

来源：Dyes and Pigments, 2011, 90(3): 259-264.

DOI：10.1016/j.dyepig.2010.12.009

• Diazonium salts
• Nitrates
• Azo compounds
• Green synthesis

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.

• 出版日期2011-9