Azoxy-benzoic acid

Calvatic acid [4-(cyano-/V(VO-azoxy)benzoic acid]. 

The azo group may be oxidized further, usually with a peracid such as 3-chloroper-benzoic acid to give azoxy linked materials examples include compounds 14-16 which are shown below [51, 54, 55], but only compounds 14 and 16 show chiral nematic phases. 

Nitro compounds may be photoreduced by suitable hydrogen donors under sunlight. For example, nitrobenzene was reduced by toluene to yield aniline, 4-amino phenol, azoxy benzene, and benzoic acid. Alkyl aromatics that can form benzyl-type radicals were efficient hydrogen donors for this reaction. The sorption of nitrobenzene to humus with increased residence time and reaction sites will likely make this pathway play a significant role in the fate of nitrobenzene. Half-life of toluene calculated from smog chamber experi-... 

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