Synthesis and structure of 3,7-dihydro-2H-1,2,4-triazolo[1′,5′-<i>a</i>]tripyrimido[4,5-<i>d</i>]benzo[<i>b</i>]pyrans
Abstract
The condensation of 5-(2-hydroxyphenyl)-6,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidines with aldehydes yields derivatives of a new heterocyclic system, namely, 3,7-dihydro-2H-1,2,4-triazolo[1′,5′-a′]pyrimido[4,5-d]benzo[b]pyran, including the 9-methyl-2,3-diphenyl derivative, whose structure was established by X-ray diffraction structural analysis.
How to Cite
Desenko, S. M.; Orlov, V. D.; Getmanskii, N. V.; Komykhov, S. A.; Paponov, B. V.; Kovalevskii, A. Yu.; Shishkin, O. V.; Struchkov, Yu. T. Chem. Heterocycl. Compd. 1996, 32, 215. [Khim. Geterotsikl. Soedin. 1996, 240.]
For this article in the English edition, see DOI https://doi.org/10.1007/BF01165451