Chemistry of the hetero analogs of isoflavones. 22. Mannich reaction in the benzimidazole and benzothiazole analogs of isoflavones

Authors

  • M. C. Фрасинюк Taras Shevchenko Kiev University, Kiev
  • А. B. Туров Taras Shevchenko Kiev University, Kiev
  • B. П. Хиля Taras Shevchenko Kiev University, Kiev

Abstract

New 3-(2-benzothiazolyl)chromones were obtained by the reaction of 2-(2,4-dihydroxy-5-ethylphenacyl)-benzothiazole with triethyl orthoformate or carboxylic acid anhydrides. Aminomethylation of the chromones and also of familiar 3-(2-benzimidazolyl)chromones by substituted 1,1-diaminomethanes gave Mannich bases.

How to Cite
Frasinyuk, M. S.; Turov, A. V.; Khilya, V. P. Chem. Heterocycl. Compd. 1998, 34, 923. [Khim. Geterotsikl. Soedin. 1998, 34, 1072.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF02311328

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Published

1998-08-25

Issue

No. 8 (1998)

Section

Original Papers