The capillary gas chromatographic properties of four β-cyclodextrin derivatives with allyl groups or propyl groups on 3-position or 6-position of β-cyclodextrin

The enantioseparation results also showed that, while all of the four CDs could well separate some enantiomers among enantiomers tested, all of the four CDs could not separate the other enantiomers at all. The four CDs possessed similar enantioseparation abilities to enantiomers tested by us, and this indicated that not only the substitute position of allyl groups or propyl groups on 3-position or 6-position of CDs did not affect the enantioseparation greatly, the double bond of allyl groups also did not play key role in the enantioseparation. This is different from the results obtained on CDs substituted with acyl groups.