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Chemistry of Heterocyclic Compounds

, Volume 13, Issue 10, pp 1114–1117 | Cite as

2-Carbomethoxyaminobenzimidazole in the synthesis of 2-oxo-1,2,3,4-tetrahydropyrimido-[1,2-a]benzimidazole and its derivatives

  • A. A. Shazhenov
  • Ch. Sh. Kadyrov
Article

Abstract

A one-step method was developed for the preparation of 2-oxo-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole and its 3-methyl, 4-methyl, 4,4-dimethyl, and 4-phenyl derivatives by heating 2-carbomethoxyaminobenzimidazole with acrylic, methacrylic, crotonic, and cinnamic acids at 140–200°C. A possible scheme for the formation of the indicated compounds is presented.

Keywords

Organic Chemistry Benzimidazole Cinnamic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

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    Outline of the Chemistry of Azoles [in Russian], Izd. Rostovsk. Gosudarstv. Univ. (1965), p. 37.Google Scholar
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    N. K. Khakimova, A. A. Shazehnov, and Ch. Sh. Kadyrov, Dokl. Akad. Nauk Uzb. SSR, 6, 35 (1975).Google Scholar
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    D. C. Erwin, H. Mee, and Y. Y. Sims, Phytopathology, 58, 528 (1968).Google Scholar

Copyright information

© Plenum Publishing Corporation 1978

Authors and Affiliations

  • A. A. Shazhenov
    • 1
  • Ch. Sh. Kadyrov
    • 1
  1. 1.Institute of the Chemistry of Plant SubstancesAcademy of Sciences of the Uzbek SSRTashkent

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