13 C N.m.r. shifts of alcohols dissolved in tetrachloromethane are displaced on addition of trifluoroacetic acid. The structure-dependent and stereoselective shift changes are useful for signal assignments, structure determination, conformational analysis, assessment of distribution of rapidly interconverting conformers, and estimation of the relative basicity of alcohols.
M. Begtrup, J. Chem. Soc., Perkin Trans. 2, 1980, 544 DOI: 10.1039/P29800000544
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