Abstract
HMO calculations were performed for all possible tautomeric forms of different 1,2,4-triazole derivatives1–4 and their condensed ring analogues5–8. The resonance energies obtained showed this method useful for the differentiation of the tautomeric structure of the planar monocyclic 1,2,4-triazole derivatives but it did not give satisfactory results in case of their non-planar condensed ring analogues.
Zusammenfassung
Die HMO-Methode wurde für alle möglichen tautomeren Formen der 1,2,4-Triazol-Derivate1–4 und deren kondensierte Analogen5–8 verwendet. Die berechneten Resonanzenergien bewiesen, daß dieHückel-Methode gute Resultate für die Unterscheidung verschiedener tautomerer Formen der planaren 1,2,4-Triazol-Derivate, aber nicht für deren nicht-planare kondensierte Analogen ergibt.
Similar content being viewed by others
References
For Part VIII see:Reiter J, Pongó L, Dvortsák P (1987) J Heterocyclic Chem 24: 1149
Presented in part on the Microsymposium on Quantum Chemistry, Liblice (Czechoslovakia), 1983
Dinya Z, Reiter J, Toldy L, Rochlitz S (1976) Acta Chim (Budapest) 90: 179
Craciunescu D, Doadrio Lopez A, Gaston de Iriarte E, Tena G, Gomez A, Tena R, Ghirvu C (1985) An R Acad Farm 51: 241; (1986) Chem Abstr 104: 144 488t
Velasco Negueruela A, Rodriguez Yunta MJ, Gomez Contreras F (1984) An R Acad Farm 50: 617; (1985) Chem Abstr 103: 16 399t
Klein D, Schmalz TG, Hite GE, Seitz WA (1986) J Am Chem Soc 108: 1301
Qiong Ch, Mingdao L, Ruxiu C, Shukang CH, Shixin L (1986) Gaodeng Xuexiao Huaxue Xuebao 6: 493; (1986) Chem Abstr 104: 5214y
Yuankai W, Jiheng L (1986) Yaoxue Xuebao 21: 65; (1986) Chem Abstr 104: 200 400h
Nethaji M, Pattabhi V (1985) Proc Indian Acad Sci Chem Sci 95: 369; (1986) Chem Abstr 104: 167 734v
Juchang S, Dehou R, Huixin L, Di Zh (1986) Gaodeng Xuexiao Huaxue Xuebao 6: 163; (1986) Chem Abstr 104: 108662x
Reiter J, Somorai T, Jerkovich G, Dvortsák P (1982) J Heterocyclic Chem 19: 1157
Reiter J, Somorai T, Dvortsák P, Bujtás G (1985) J Heterocyclic Chem 22: 385
Reiter J, Pongó L, Somorai T, Dvortsák P (1986) J Heterocyclic Chem 23: 401
Reiter J, Pongó L, Dvortsák P (1987) J Heterocyclic Chem 24: 127
Reiter J,Pongó L,Dvortsák P,Dinya Z (1981) Structure elucidation of isomeric triazolo-pyrimidinone derivatives. Paper presented on the 8th Int Congr Heterocyclic Chem, Graz (Austria)
Reiter J, Pongó L, Dvortsák P (1987) Tetrahedron 43: 2497
Streitwieser A Jr (1961) Molecular orbital theory for organic chemists. Wiley, New York
Pullman B, Pullman A (1963) Quantum biochemistry. Wiley Interscience, New York, p 116
Starova GL,Frank-Kamenetskaya OV,Frank-Kamenetsky VA (1985) Acta Cryst A 37S: C373
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Reiter, J., Pongó, L. & Lukovits, I. On triazoles, IX HMO calculations of tautomeric 1,2,4-triazole derivatives. Monatsh Chem 119, 341–348 (1988). https://doi.org/10.1007/BF00810260
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00810260