N‐Substituted 3‐methoxy‐4‐pyridones Ia‐e rearrange to the corresponding N‐substituted 3‐hydroxymethyl‐4‐pyridones IIa‐e when irradiated at 254 or 300 nm in benzene or toluene solution.
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STIPLOSEK et al. (1989) studied this question.
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