1-Vinylpyrrole-2-carbaldehyde oximes: synthesis, isomerization, and spectral properties
作者:Alexander M. Vasil’tsov、Kai Zhang、Andrei V. Ivanov、Igor A. Ushakov、Andrei V. Afonin、Konstantin B. Petrushenko、Shayu Li、Jin Shi Ma、Al’bina I. Mikhaleva、Boris A. Trofimov、Guoqiang Yang
DOI:10.1007/s00706-009-0200-0
日期:2009.12
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