SYNTHESIS OF SULFOLANOPYRANOCHROMENONES BY THE REACTION OF 2-BENZYLIDENE-3-METHYL-4-NITRO-2,5-DIHYDROTHIOPHENE 1,1-DIOXIDES WITH 4-HYDROXYCOUMARIN

Authors

  • Ирина Е. Ефремова Herzen State Pedagogical University of Russia, 48 Moyka River Embankment, Saint Petersburg 191186
  • Игорь И. Савельев Herzen State Pedagogical University of Russia, 48 Moyka River Embankment, Saint Petersburg 191186
  • Руслан И. Байчурин Herzen State Pedagogical University of Russia, 48 Moyka River Embankment, Saint Petersburg 191186
  • Владислав В. Гуржий Saint Petersburg State University, 7/9 University Embankment, Saint Petersburg 199034

DOI:

https://doi.org/10.1007/6864

Keywords:

2-benzylidene-3-methyl-4-nitro-2, 5-dihydrothiophene 1, 1-dioxides, enolizable cyclic CH acids, 4-hydroxycoumarin, sulfolenes, domino process

Abstract

A number of tetracyclic compounds with annulated nitrosulfolane and pyranochromenone rings were synthesized by reacting 2-benzylidene-3-methyl-4-nitro-2,5-dihydrothiophene 1,1-dioxides with 4-hydroxycoumarin. Structural features of the resulting polycyclic compounds were established on the basis of IR, 1Н, 13С NMR, 1Н–13С HMQC, 1Н–13С HMBC, NOESY spectroscopy and X-ray structural analysis data.

Authors: Irina E. Efremova*, Igor I. Savelev, Ruslan I. Baichurin, Vladislav V. Gurzhiy

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Published

2022-09-21

Issue

Vol. 58 No. 8/9 (2022)

Section

Original Papers