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Two new chiral stationary phases (CSP) were successfully prepared through bonding β-cyclodextrin (CD) derivatives modified by R-configuration groups (R-CPGCD, R-HMPGCD) to silica gel. Nineteen chiral nitro aromatic alcohol derivatives were separated under the polar organic and the reversed phase modes. Better enantioseparation was obtained in the reversed phase mode. The resolution values of the analytes...
Different substituent groups were introduced onto the rim of β-cyclodextrin through rigid CN bonds to form a series of imino-modified β-cyclodextrin derivatives: mono(6-deoxy-phenylimino)-β-cyclodextrin (BCD), mono(6-deoxy-isopropylimino)-β-cyclodextrin (YBCD), mono(6-deoxy-N-1-phenylethylimino)-β-cyclodextrin (R-,S-BYCD), mono[6-deoxy-N-1-(2-hydroxyl)-phenylethylimino]-β-cyclodextrin (R-,S-PGCD),...
A novel chiral stationary phase (CSP) was prepared by immobilizing mono(6 A -N-1-(2-hydroxyl)-phenylethyl-imino-6 A -deoxy)-β-cyclodextrin onto the surface of silica gel via a longer spacer. This chiral stationary phase exhibited good enantioselectivity for a variety of chiral compounds under reversed-phase conditions.
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