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Reductive cleavage by sodium in liquid ammonia of the lignin of cotton-plant stems

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Summary

1. The reductive degradation by metallic sodium and liquid ammonia of the lignin of green cotton-plant stems has confirmed the presence in them of three types of structural units: syringyl, guaiacyl, and p-hydroxycoumaryl.

2. The preliminary sonication of the plant with ultrasound leads to a decrease in the amount of products containing methoxy groups in the aromatic nucleus, particularly syringyl structures.

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Literature cited

  1. N. N. Shorygina and A. F. Semechkina, Zh. Obshch. Khim.,23, No. 9, 1593 (1953).

    Google Scholar 

  2. N. N. Shorygina and A. F. Semechkina, Izv. Akad. Nauk SSSR, Ser. Khim., No. 4, 715 (1963).

  3. N. N. Shorygina and A. F. Semechkina, Khimiya Drevesiny, No. 1, 57 (1968).

  4. A. Yamaguchi, M. Miyaraki, and A. Sakakibara, Mokuzai Gakkaishi,19, No. 1, 23 (1973).

    CAS  Google Scholar 

  5. A. F. Semechkina and N. N. Shorygina, Zh. Obshch. Khim.,28, No. 12, 3265 (1958).

    CAS  Google Scholar 

  6. N. P. Mikhailov, N. N. Shorygina, and N. K. Vorob'eva, in: The Chemistry and Use of Lignin [in Russian], Riga (1974), p. 321.

  7. V. M. Reznikov and V. F. Novitskii, Khim. Prirodn. Soedin., 77 (1975).

  8. A. Yamaguchi, Mokuzai Gakkaishi,19, No. 2, 95 (1973).

    CAS  Google Scholar 

  9. N. N. Shorygina and Kh. R. Niyazov, Izv. Akad. Nauk SSSR, Ser. Khim., No. 3, 563 (1963).

  10. A. A. Geronikaki and Kh. A. Abduazimov, Khim. Prirodn. Soedin., 398 (1974).

  11. B. A. Yankovskii and A. A. Pershina, Khimiya Drevesiny, No. 3, 62 (1969).

  12. K. K. Delkova and Yu. N. Zafranskii, in: Physics, Chemistry, and Chemical Technology [in Russian], Krasnoyarsk (1969), p. 266.

  13. A. Yamaguchi, Mokuzai Gakkaishi,19, No. 3, 141 (1973).

    CAS  Google Scholar 

  14. S. A. Saidalimov, L. S. Smirnova, and Kh. A. Abduazimov, Khimiya Drevesiny, No. 2, 75 (1976).

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Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 643–646, September–October, 1976.

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Saidalimov, S.A., Smirnova, L.S. & Abduazimov, K.A. Reductive cleavage by sodium in liquid ammonia of the lignin of cotton-plant stems. Chem Nat Compd 12, 574–576 (1976). https://doi.org/10.1007/BF00565190

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  • DOI: https://doi.org/10.1007/BF00565190

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