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Chemistry of Natural Compounds

, Volume 7, Issue 4, pp 466–471 | Cite as

A comparative investigation of biosynthetic lignins obtained from coniferyl and p-coumaryl alcohols with reed and spruce lignins

  • T. S. Sdykov
  • N. N. Shorygina
  • A. F. Semechkina
  • B. V. Lopatin
Article
  • 22 Downloads

Summary

  1. 1.

    Biosynthetic lignins have been obtianed by Freudenberg's method from coniferyl and p-coumaryl alcohols.

     
  2. 2.

    In its elementary and functional composition, DHP-1 is similar to the corresponding material obtained by Freudenberg.

     
  3. 3.

    For DHP-1 the yield of ether-soluble phenols is considerably higher than for DHP-2, which may indicate a greater degree of condensation of the latter as compared with the former.

     
  4. 4.

    Reductive decomposition by a solution of metallic sodium in liquid ammonia has shown that the phenols obtained from reed lignin have a complex composition.

     
  5. 5.

    A comparison of the IR and UV spectra of the biosynthetic lignins obtained and of reed and spruce MWLs has been performed.

     

Keywords

Coniferous Species Coniferyl Liquid Ammonia Coniferyl Alcohol Aromatic Nucleus 

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Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1973

Authors and Affiliations

  • T. S. Sdykov
  • N. N. Shorygina
  • A. F. Semechkina
  • B. V. Lopatin

There are no affiliations available

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