Condensation of the arylmethylamines (1) and 2,6-di-t-butyl-p-benzoquinone gives the 4-(N-arylmethyleneamino)-2,6-di-t-butylphenols (3) in good yield, base-catalysed oxygenation of which leads to selective formation of the amides (4).
A. Nishinaga, T. Shimizu and T. Matsuura, J. Chem. Soc., Chem. Commun., 1979, 970 DOI: 10.1039/C39790000970
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