Chemistry of Heterocyclic Compounds

, Volume 6, Issue 7, pp 809–810 | Cite as

Studies on pyran, its analogs, and related compounds

XL. Reaction of chromonecarboxylic acids with guanidine
  • Sh. M. Glozman
  • V. A. Zagorevskii


The action of guanidine on esters of chromone-2-carboxylic acids leads to the opening of the pyrone ring and to the formation of hydantoin derivatives — 2-imino-5-(2-hydroxybenzoylmethylene)tetrahydroimidazol-4-ones — in addition to other reaction products.


Ester Organic Chemistry Pyran Guanidine Related Compound 

Literature cited

  1. 1.
    C. Musante and S. Fatutta, Farmaco (Pavia), Ed. Sci., 9, 328 (1954).Google Scholar
  2. 2.
    V. A. Zagorevskii and D. A. Zykov, ZhOKh, 30, 3579 (1960).Google Scholar
  3. 3.
    V. A. Zagorevskii, D. A. Zykov, and É. K. Orlova, ZhOKh, 34, 539 (1964).Google Scholar

Copyright information

© Plenum Publishing Corporation 1973

Authors and Affiliations

  • Sh. M. Glozman
    • 1
  • V. A. Zagorevskii
    • 1
  1. 1.Institute of PharmacologyAcademy of Medical Sciences of the USSRMoscow

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