Complete 1H and 13C NMR assignments of the epimeric menthane-1-carboxylic acids.

Magnetic resonance in chemistry : MRC

PubMedID: 17221905

Dillner DK, Traficante DD. Complete 1H and 13C NMR assignments of the epimeric menthane-1-carboxylic acids. Magn Reson Chem. 2007;45(3):193-7.
Complete NMR analyses with full assignments for (1)H and (13)C NMR spectral data for both epimers of menthane-1-carboxylic acid are described. The NMR properties of the recently synthesized axial isomer had not been previously described, and through use of a variety of 1D and 2D techniques, additional information is provided for the equatorial isomer. As well as assignments of chemical shifts, homonuclear coupling constants were determined for the equatorial isomer and most of coupling constants were measured for the axial isomer.