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

چکیده مقاله

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.