Abstract
4-p-Methoxy-phenylimino-3-hydroxyimino-2-pentanone has been synthesized, characterized by elemental analysis. IR, NMR and mass spectroscopies and its structure determined by single crystal X-ray diffraction. It crystallizes in the orthorhombic space group P212121, witha=7.2294(7),b=11.540(1),c=14.670(2) A. Spectroscopic and X-ray data clearly indicate that the oxime tautomer is present. In the solid state, the geometrical isomer is the EZ, which is also the main species in solution according to NMR data. The two C=N bonds are not conjugated to each other.
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