Molecules (Sep 2022)

Facile Access to 2-Selenoxo-1,2,3,4-tetrahydro-4-quinazolinone Scaffolds and Corresponding Diselenides via Cyclization between Methyl Anthranilate and Isoselenocyanates: Synthesis and Structural Features

  • Vladimir K. Osmanov,
  • Evgeniy V. Chipinsky,
  • Victor N. Khrustalev,
  • Alexander S. Novikov,
  • Rizvan Kamiloglu Askerov,
  • Alexander O. Chizhov,
  • Galina N. Borisova,
  • Alexander V. Borisov,
  • Maria M. Grishina,
  • Margarita N. Kurasova,
  • Anatoly A. Kirichuk,
  • Alexander S. Peregudov,
  • Andreii S. Kritchenkov,
  • Alexander G. Tskhovrebov

DOI
https://doi.org/10.3390/molecules27185799
Journal volume & issue
Vol. 27, no. 18
p. 5799

Abstract

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A practical method for the synthesis of 2-selenoxo-1,2,3,4-tetrahydro-4-quinazolinone was reported. The latter compounds were found to undergo facile oxidation with H2O2 into corresponding diselenides. Novel organoselenium derivatives were characterized by the 1H, 77Se, and 13C NMR spectroscopies, high-resolution electrospray ionization mass spectrometry, IR, elemental analyses (C, H, N), and X-ray diffraction analysis for several of them. Novel heterocycles exhibited multiple remarkable chalcogen bonding (ChB) interactions in the solid state, which were studied theoretically.

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