Abstract
Abstract Naphthalene-1-ONN-azoxybenzenes and some unsymmetrically ortho-substituted ONN- and NNO-azoxybenzenes were prepared, and their photochemical behavior in ethanol was compared. The crowded azoxyarenes tend to undergo a facile Wallach rearrangement via the known azoxy-ortho oxygen mirgation and a concurrent pathway involving ONN–NNO isomerization. The relative contribution of the two pathways was affected by substituents.
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