1638770-53-2Relevant academic research and scientific papers
Formation of azolo [1,2,4]triazinium salts by reaction of heterocyclic-substituted 1-azo-naphthalen-2-ols with strong acids
Yu, Xiuling,Hartmann, Horst
, p. 501 - 508 (2014/06/10)
By reaction of heterocyclic-substituted 1-azo-naphth-2-ols with the Vilsmeier reagent or with strong acids polycyclic azolo[1,2,4]triazinium salts are formed in good yields. The azolo[1,2,4] triazinium salts exhibit similar UV/Vis absorption properties as the starting azo compounds, but in contrast to those the fluorescence appears in the visible range.
