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 
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Literature cited

  1. 1.
    C. Musante and S. Fatutta, Farmaco (Pavia), Ed. Sci., 9, 328 (1954).Google Scholar
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    V. A. Zagorevskii and D. A. Zykov, ZhOKh, 30, 3579 (1960).Google Scholar
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    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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