Tautomerism and geometric isomerism of nitrogen containing derivatives of carbonyl compounds

Communication 7. Ultraviolet spectra of some semicarbazones and thiosemicarbazones
  • Yu. P. Kitaev
  • G. K. Budnikov
  • A. V. Chernova
Organic and Biological Chemistry
  • 30 Downloads

Summary

  1. 1.

    p-Nitrobenzaldehyde thiosemicarbazone and semicarbazone have quinonoid structures in an alkaline medium, and p-dimethylaminobenzaldehyde derivatives have quinonoid structures in an acid medium.

     
  2. 2.

    A study was made of the effect of S-methylation on the ultraviolet spectra of the thiosemicarbazones of benzaldehyde, acetophenone, cyclohexanone, and acetone.

     
  3. 3.

    It was shown that there is a hypsochromic shift of the absorption maximum as we pass to a polar solvent for some thiosemicarbazones and their S-methyl derivatives.

     

Keywords

Nitrogen Acetone Carbonyl Absorption Maximum Acid Medium 

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Literature cited

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Copyright information

© Consultants Bureau Enterprises, Inc. 1963

Authors and Affiliations

  • Yu. P. Kitaev
    • 1
  • G. K. Budnikov
    • 1
  • A. V. Chernova
    • 1
  1. 1.A. E. Arbuzov Chemical InstituteAcademy of SciencesUSSR

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