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, Tamás Patonay, Albert Lévai, José Elguero

Research output: Article

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 - márc. 1 1999

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • 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.