NMR differentiation of enantiomeric (+)- and (–)-α-pinene via complexation with cyclodextrins in water
- 1 January 1993
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 13,p. 1085-1086
- https://doi.org/10.1039/c39930001085
Abstract
(+)- and (–)-α-Pinene form diastereoisomeric complexes with α-, 2,3,6-tri-O-methyl-β-, 2,3,6-tri-O-methyl-β- and 2,3,6-tri-O-acetyl-β-cyclodextrin which are distinguishable in 1H and 13C NMR spectra, the α-pinene protons obeying the slow exchange condition during the complexation process; utilization of cyclodextrins as chiral shift reagents for molecules lacking polar groups is consequently proposed.Keywords
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