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Studies in the formation of heterocyclic rings containing nitrogen: Part XXIII. Condensation ofo-aminobenzamide with aldehydes and schiff bases

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Abstract

N-Arylidene orthanilamides undergo isomeric cyclisation in acetic acid to the corresponding 2-aryl-1, 2, 3, 4-tetrahydro-4-oxoquinazolines. The u.v. and n.m.r. spectra of some of the arylidene derivatives and their isomeric tetrahydroquinazolines have neeb studied. Condensation ofo-aminobenzamide either with aromatic aldehydes in nitrobenzene or Schiff bases in acetic acid has yielded 2-aryl-4 (3H)-quinazolinones.

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Authors and Affiliations

  1. Department of Chemistry, Osmania University, 500007, Hyderabad

    P. Hanumanthu, S. K. V. Seshavatharam, C. V. Ratnam & N. V. Subba Rao

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  1. P. Hanumanthu
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  2. S. K. V. Seshavatharam
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  3. C. V. Ratnam
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  4. N. V. Subba Rao
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Deceased.

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Hanumanthu, P., Seshavatharam, S.K.V., Ratnam, C.V. et al. Studies in the formation of heterocyclic rings containing nitrogen: Part XXIII. Condensation ofo-aminobenzamide with aldehydes and schiff bases. Proc. Indian Acad. Sci. 84, 57–63 (1976). https://doi.org/10.1007/BF03046642

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  • DOI: https://doi.org/10.1007/BF03046642

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