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The reaction of 1-vinylpyrrole-2-carbaldehydes with hydroxylamine hydrochloride in pyridine or ethanol in the presence of NaHCO3 or NaOAc affords previously unknown 1-vinylpyrrole-2-carbaldehyde oximes in 95–99% yields. Isomerization of oximes from (E) to (Z) in the presence of strong acids and the spectral characteristics of the isomers were studied. Graphical Abstract
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