Abstract
The configuration and predominant conformations of 2-isopropyl-4,5,6-alkylsubstituted 1,3,2-oxathioborinanes have been studied by 1H-NMR spectroscopy. 2,4-and 2,6-Dialkylsubstituted derivatives exist in near half-chair conformations, while 6,6-dimethyl-2-isopropyl-1,3,2-oxathioborinane exists in two energetically equivalent inverting forms. 2,5,6- and 2,4,6-Trialkylsubstituted 1,3,2-oxathioborinanes consist of mixtures of stereoisomers differing in the orientations of the alkyl groups at the C(6) and C(4) ring atoms.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 242–245, February, 1990.
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Bacherikov, V.A., Gren', A.I., Gorbatyuk, V.Y. et al. Conformation of 4,5,6-substituted 2-isopropyl-1,3,2-oxathioborinanes. Chem Heterocycl Compd 26, 208–212 (1990). https://doi.org/10.1007/BF00499418
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DOI: https://doi.org/10.1007/BF00499418