Chiral Separations in Nonaqueous Media - Chiral Separations by Capillary Electrophoresis - page 275

TABLE 10.1 (continued)
Chiral Selectors Used in NACE
Type of Interaction Group of Selectors Example of Selector

Ion-pair formation Chiral counterion (negatively

charged)

(+) and (−)-camphorsulfonic acid [6]
(1 S ,4 R )-ketopinic acid [20]
(−)-DIKGA [15,20,21]
l-ZGP [70]
(S) -and (R) -dinitrobenzoyl-leucine [51]
Quinine [5,55,56]
Quinine derivatives [14,56-60]
Quinidine [55]
Quinidine derivatives [14,57,61]
Cinchonine [55]
Cinchoine derivatives [55]
Cinchonidine [55]
Cinchonidine derivatives [55]

Chiral counterion (positively
charged)

Inclusion complexation
and ion-pair formation

Negatively charged CD
derivative

Sulfated-β-CD [3,81,110]
Sulfated-γ-CD [87,111],
ODAS-γ-CD [87]
ODMS-γ-CD [111]
HDMS- -CD [17,84,85]

HDAS-β-CD [86]
TBA 7 HDAS-β-CD [90]
EA-β-CD [112]
IPA-β-CD [112]
PA -

β

Positively charged CD
derivative

-CD [112]
QA-β-CD [24]
(+)-18-Crown-6-tetracarboxylic
acid [94]

β

Crown ether

Ligand-exchange
mechanism

Complex of copper (II) and l-proline
or l-isoleucine [95]

Abbreviations: HP-β-CD, hydroxypropyl-β-cyclodextrin; HE-β-CD, hydroxyethyl-β-cyclodextrin;
HxDAS, hexakis(2,3-diacetyl-6- O -sulfo)-α-cyclodextrin; (−)-DIKGA, di- O -isopropy-
lidene-keto-l-gulonic acid; l-ZGP, N -benzoxycarbonylglycyl-l-proline; ODAS-γ-CD,
octakis(2,3-diacetyl.6.sulfato)-γ-cyclodextrin; ODMS-γ-CD, octakis(2,3- O -dimethyl-
6- O -sulfo)-γ-cyclodextrin; HDMS-β-CD, heptakis(2,3-dimethyl-6-sulfato)-β-CD;
HDAS-β-CD, heptakis(2,3-diacetyl-6-sulfato)-β-CD; TBA 7 HDAS-β-CD, heptakis(2,3-
di- O -acetyl-6-sulfo)-cyclomaltoheptanose tetrabutylammoniumsalt; EA-β-CD, 6-mono-
deoxy-6-mono (2-hydroxy)ethylamino-β-cyxlodextrin; IPA-β-CD, 6-monodeoxy-6-mono
(2-hydroxy)propylamino-β-cyxlodextrin; PA-β-CD, 6-monodeoxy-6-mono (3-hydroxy)
propylamino-β-cyxlodextrin; QA-β-CD, quartenary ammonium β-CD.