Abstract
Conformational equilibrium of 5-isopropyl-1,3-oxathiane occurs mainly between the forms of chair with equatorial and axial orientation of the substituent at the C5 atom, and in the case of 2,2,5-trimethyl- and, apparently, in the case of 5-tert-butyl-1,3-oxathianes is characterized by a more noticeable contribution of flexible forms.
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Turyanskaya, A.M., Novikov, A.N., Verkhivker, G.M. et al. Conformational Composition of 5-Alkyl-1,3-Oxathianes. Russian Journal of General Chemistry 71, 1487–1490 (2001). https://doi.org/10.1023/A:1013930725137
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DOI: https://doi.org/10.1023/A:1013930725137