CRYSTAL AND MOLECULAR-STRUCTURE AND SPECTRA OF ]-1-OXA-3,4-DISELENIN-2-SPIRO-3'-FURAN-4'(3'H)-ONE FROM SELENIUM DIOXIDE OXIDATION OF 2,2,5,5-TETRAMETHYLTETRAHYDROFURAN-3-ONE - A NOVEL 6-MEMBERED HETEROCYCLIC RING-SYSTEM IN THE CHALCOGEN SERIES
P. Kuronen et al., CRYSTAL AND MOLECULAR-STRUCTURE AND SPECTRA OF ]-1-OXA-3,4-DISELENIN-2-SPIRO-3'-FURAN-4'(3'H)-ONE FROM SELENIUM DIOXIDE OXIDATION OF 2,2,5,5-TETRAMETHYLTETRAHYDROFURAN-3-ONE - A NOVEL 6-MEMBERED HETEROCYCLIC RING-SYSTEM IN THE CHALCOGEN SERIES, Journal of heterocyclic chemistry, 30(4), 1993, pp. 961-965
When 2,2,5,5-tetramethyltetrahydrofuran-3-one 1 was oxidized with sele
nium dioxide in ethanol, the title heterocycle 4 was formed along with
2,2,5,5-tetramethyltetrahydro-3,4-furandione 2. The diselenide 4 repr
esents a novel six-membered heterocycle in the chalcogen series.