Bi(NO3)3.5H2O: An efficient acidic reagent for synthesis of azo dyes at room temperature

Authors

• Bi Bi Fatemeh Mirjalili ¹
• Abdolhamid Bamoniri ²
• Naimeh Salehi ¹

1. Department of Chemistry, College of Science, Yazd University, Yazd, P.O. Box 89195-741, Iran
2. Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran

Abstract

An one-pot method has been developed for the synthesis of azo dyes via sequential diazotization–diazo coupling of aromatic amines with coupling agents at room temperature in the presence of Bi(NO3)3. 5H2O. Short reaction times, high yields, a clean process, simple methodology, easy work-up and green ‎conditions are advantages of this protocol.‎

Keywords

• Bi(NO3)3.SiO2
• Stable diazonium salts
• One-pot synthesis
• Azo dye.