New syntheses of 4(5)-aryl-5(4)-(2-chromonyl)-1,2,3-triazoles from 2- styrylchromones and sodium azide

Artur M S Silva, Judite S. Vieira, José A S Cavaleiro, T. Patonay, A. Lévai, José Elguero

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The reactions of 2-α-bromostyrylchromones or 2-styrylchromones with sodium azide afforded 4(5)-aryl-5(4)-(2-chromonyl)-1,2,3-triazoles. In the case of 2-α-bromostyrylchromones, the unexpected 1-aryl-5-(2-chromonyl- methyl)tetrazoles have been obtained as minor products and the mechanism of its formation is discussed. The bromination/dehydrobromination reactions of 2-styrylchromones were also studied.

Original languageEnglish
Pages (from-to)481-487
Number of pages7
JournalHeterocycles
Volume51
Issue number3
Publication statusPublished - Mar 1 1999

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Tetrazoles
Sodium Azide
Triazoles
Halogenation
2-styrylchromone

ASJC Scopus subject areas

  • Organic Chemistry

Cite this

Silva, A. M. S., Vieira, J. S., Cavaleiro, J. A. S., Patonay, T., Lévai, A., & Elguero, J. (1999). New syntheses of 4(5)-aryl-5(4)-(2-chromonyl)-1,2,3-triazoles from 2- styrylchromones and sodium azide. Heterocycles, 51(3), 481-487.

New syntheses of 4(5)-aryl-5(4)-(2-chromonyl)-1,2,3-triazoles from 2- styrylchromones and sodium azide. / Silva, Artur M S; Vieira, Judite S.; Cavaleiro, José A S; Patonay, T.; Lévai, A.; Elguero, José.

In: Heterocycles, Vol. 51, No. 3, 01.03.1999, p. 481-487.

Research output: Contribution to journalArticle

Silva, AMS, Vieira, JS, Cavaleiro, JAS, Patonay, T, Lévai, A & Elguero, J 1999, 'New syntheses of 4(5)-aryl-5(4)-(2-chromonyl)-1,2,3-triazoles from 2- styrylchromones and sodium azide', Heterocycles, vol. 51, no. 3, pp. 481-487.
Silva, Artur M S ; Vieira, Judite S. ; Cavaleiro, José A S ; Patonay, T. ; Lévai, A. ; Elguero, José. / New syntheses of 4(5)-aryl-5(4)-(2-chromonyl)-1,2,3-triazoles from 2- styrylchromones and sodium azide. In: Heterocycles. 1999 ; Vol. 51, No. 3. pp. 481-487.
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