OXIDATION OF 3-ARYL-1<i>H</i>-BENZO[<i>f</i>]CHROMENES WITH KOSER'S REAGENT – SYNTHESIS OF BENZOFLAVYLIUM TOSYLATES

Authors

  • Виталий А. Осянин Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
  • Максим Р. Демидов Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
  • Дмитрий В. Осипов Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia
  • Юрий Н. Климочкин Samara State Technical University, 244 Molodogvardeyskaya St., Samara 443100, Russia

DOI:

https://doi.org/10.1007/5712

Keywords:

3-aryl-1H-benzo[f]chromenes, benzoflavylium tosylates, Koser's reagent, oxidative aromatization.

Abstract

The oxidation of 3-aryl-1H-benzo[f]chromenes with Koser's reagent in methanol afforded a series of benzoflavylium tosylates. This reaction is the first example of the use of polyvalent iodine compounds to access arene-condensed pyrylium salts.

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Published

2020-05-28

Issue

Vol. 56 No. 5 (2020)

Section

Short Communications