17O NMR spectra of methyl-substituted 2-
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Jorma Mattinen; Kalevi Pihlaja
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Article
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1987
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John Wiley and Sons
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English
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I7O NMR chemical shifts of 2-oxo-1,3,2-dioxathiane and 13 of its methyl-substituted derivatives are reported. The chemical shifts depend strongly on temperature and to a much smaller extent on concentration. As a whole, however, they strongly support the predominance of chair conformations in these