Abstract
It was found that the heating of 3,7-dimethyl-5-thianonan-2,8-dione at 50°C in ethanol in the presence of potassium hydroxide yields 1,4,5-trimethyl-7-thiabicyclo[2.2.2]octan-2-one as a mixture of 5-exo-and 5-endo-isomers in the ratio of 5:1. The oxidation of thiabicyclooctanone with hydrogen peroxide and its reduction with sodium borohydride result in 1,4,5-trimethyl-7-thiabicyclo[2.2.2]octane-2-one-7,7-dioxide and 1,4,5-trimethyl-7-thiabicyclo[2.2.2]octane-2-ol, respectively.
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Original Russian Text © L.A. Baeva, A.D. Ulendeeva, A.R. Gaisina, O.V. Shitikova, E.G. Galkin, N.K. Lyapina, 2007, published in Neftekhimiya, 2007, Vol. 47, No. 2, pp. 134–138.
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Baeva, L.A., Ulendeeva, A.D., Gaisina, A.R. et al. Synthesis of 1,4,5-trimethyl-7-thiabicyclo[2.2.2]octan-2-one from 3,7-dimethyl-5-thianonan-2,8-dione. Pet. Chem. 47, 118–122 (2007). https://doi.org/10.1134/S0965544107020090
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DOI: https://doi.org/10.1134/S0965544107020090