Dimethyl azoxybenzene

Dimethylaniline. See Aminoxylene A272 Dimethyl azobenzene. See Azotoluene A660-L Dimethyl azoxybenzene. See Azoxytoluene... 

Azoxycyclododecane Methyl-MVO-azoxybenzene Ethyl-NTW-azoxybenzene Isopropyl-iVTVO-azoxybenzene -Butyl-WV< -azoxybenzene Methyl-AWO-azoxy(p-chlorobenzene) Isopropyl-lVlW-azoxyfp-chlorobenzene) Methyl-AWO-2-azoxy-2,5-dimethyl-hexane... 

Aromatic and heterocyclic nitro compounds are readily reduced in good yield to the corresponding amines (e.g. o-aminophenol, Expt 6.50) by sodium borohydride in aqueous methanol solution in the presence of a palladium-on-carbon catalyst. In this reduction there is no evidence for the formation of intermediates of the azoxybenzene or azobenzene type, although if the reaction is carried out in a polar aprotic solvent, such as dimethyl sulphoxide, azoxy compounds may sometimes be isolated as the initial products. 

The anaerobic metabolites of 2,4-dinitrotoluene and 2,6-dinitrotoluene (2,6-diami-notoluene, 2-hydroxylamino-6-nitrotoluene, 2-nitroso-6-nitrotoluene, 2-amino-6-nitrotoluene, 3,3 -diamino-2,2 -dimelhylazoxybenzene, 2,2 -dimethyl-3,3 -dinitro-azoxybenzene) were baseline resolved on a C g column (2 = 250nm) using a complex 65-min 15/85 - 60/40 acetonitrile/water gradient [944], Detection limits of 5 ng injected were reported. A linear concentration range of 5-50 ng injected was generated. 

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