Alkaline ferricyanide oxidation of 4-arylazo-2, 6-di-t-butylphenols (I) gave molecular nitrogen, diphenyl derivatives (VI), 2, 6-di-t-butyl-p-benzoquinone-N-(3′, 5′-di-t-butyl-4′- hydroxyphenyl) arylhydrazone (V) and red tarry compounds. Picryl derivative of phenol (I) gave 2, 6-di-t-butyl-p-benzoquinone-picrylanil (X) instead of hydrazone (V). The reaction path was studied on the basis of isolated compounds.
