Chemistry of Natural Compounds

, Volume 22, Issue 2, pp 218–219 | Cite as

Cleavage of the natural lignin and the dioxane lignin of kenaf by thioacetic acid

  • G. N. Dalimova
  • Kh. A. Abduazimov
Article

Abstract

The dioxane lignin and the natural lignin of kenaf undergo 37.62% and 94.6% cleavage, respectively. The combined monomeric degradation products have been studied by the GLC method. The presence of substances relating to three types of structural units has been established: p-coumaryl, gualacyl, and syringyl. It has been shown by chromatography on Sephadex LH-20 (with ethanol-water (9:1) as solvent and eluent) that the phenolic products of degradation extracted by ethyl acetate at pH 2 consist of five fractions: oligomers, tetramers, trimers, dimers, and monomers.

Keywords

Acetate Ethyl Organic Chemistry Ethyl Acetate Oligomer 

Literature cited

  1. 1.
    H. Nimz, Chem. Ber.,102, 799 (1969).Google Scholar
  2. 2.
    H. Nimz, K. Das, and N. Minemura, Chem. Ber.,104, 1871 (1971).Google Scholar
  3. 3.
    J. Skamla and J. Rybarik, Drev. Vys.,20, Nos. 2–3, 107 (1975).Google Scholar
  4. 4.
    L. S. Smirnova and Kh. A. Abdduazimov, Khim. Prir. Soedin., 505 (1978).Google Scholar
  5. 5.
    E. N. Yanishevskaya, B. Kh. Pulatov, and Kh. A. Abduazimov, Khim. Prir. Soedin. 737, (1980).Google Scholar
  6. 6.
    N. Ya. Kul'chik, G. N. Dalimova, and Kh. A. Abduazimov, Khim. Prir. Soedin., 637 (1978).Google Scholar
  7. 7.
    G. N. Dalimova, A. A. Geronikaki, and Kh. A. Abduazimov, Khim. Prir. Soedin., 780 (1978).Google Scholar
  8. 8.
    A. Yamaguchi, Mokuzai Gakkaishi,19, No. 3, 141 (1973).Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • G. N. Dalimova
  • Kh. A. Abduazimov

There are no affiliations available

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