Photochemical methoxy/hydroxymethyl rearrangement in 3‐methoxy‐N‐substituted‐4‐pyriclones

Abstract

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.