betaine―were synthesized by the oxidative cyclization of 1,3-diphenyl-5-(4-sulfophenyl)formazan and 5-(4-nitrophenyl)-3-phenyl-1-(4-sulfophenyl)formazan under the action of N-bromosuccinimide. The synthesis of sulfoformazans is accompanied by formation of azo coupling products with substitution of the sulfo group in the hydrazone molecule by the arylazo group. Spectral and voltage–current characteristics
显色氧化还原指示剂-3,5
-二苯基-2-(4-磺基苯基)-2Н-
四唑甜菜碱和2-(4-
硝基苯基)-5-苯基-3-(4-磺基苯基)-2Н-
四唑甜菜碱-在N-
溴代琥珀
酰亚胺的作用下,通过1,3
-二苯基-5-(4-磺基苯基)甲form和5-(4-
硝基苯基)-3-苯基-1-(4-磺基苯基)甲the的氧化环化反应合成了二甲。磺基甲酰胺的合成伴随有偶氮偶合产物的形成,其中coupling分子中的磺基被芳基偶氮基取代。研究了合成化合物的光谱和电压-电流特性。