Synthesis and characterization of benzyl β-cyclodextrins used as GC stationary phases

Xiao, Deng; Q., B.; Fu, Ruonong; Gu, Junling; Wen, Yuxiu; Ling, Yun; Zhang, H. B.

doi:10.1007/bf02466316

Cited by 3 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[19], and so on [18,20]. As for other aromatic positional isomers, such as xylene, the separation efficiency is also better than other b-CD stationary phases although the peak orders of these were different [13,20]. This might be attributed to the action of the pyridyl group, which not only has a stronger induction effect but also stronger p-p interaction with aromatic compounds.…”

Section: Resultsmentioning

confidence: 81%

“…Compared with other kinds of b-CD stationary phases, the pyridyl b-CD also shows excellent selectivity for some positional isomers. [19], and so on [18,20]. As for other aromatic positional isomers, such as xylene, the separation efficiency is also better than other b-CD stationary phases although the peak orders of these were different [13,20].…”

Section: Resultsmentioning

confidence: 92%

See 1 more Smart Citation

Capillary GC using pyridyl β‐cyclodextrin stationary phase

Shen

Jian

Yang

et al. 2008

J of Separation Science

View full text Add to dashboard Cite

A new beta-CD derivative, heptakis [2,6-di-O-pentyl-3-O-(4'-chloro-5'-pyridylmethyl)]-beta-CD, was synthesized by the selective introduction of a pyridyl group on the 3-positions of beta-CD. The chromatographic properties of the pyridyl beta-CD derivative were studied by using it as the stationary phase in capillary GC. The polarity of the prepared stationary phase was moderate, and the separation results demonstrated that the prepared stationary phase possessed excellent separation ability and chiral recognition for a wide range of analytes. Not only the aromatic positional isomers, such as o-, m-, p-xylene and alpha-, beta-naphthol isomers, but also some compounds with multi-stereogenic centers, such as n-(1-methylpropyl)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxamide and n-(1-methylpropyl)-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxamide with three stereogenic centers including eight configurational isomers, were successfully separated. The results also indicated that the polarity of the beta-CD derivative, and the hydrogen bonding between the beta-CD derivative, and the analytes had a very important effect on separation.

show abstract

Section: Resultsmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 92%

Capillary GC using pyridyl β‐cyclodextrin stationary phase

Shen

Jian

Yang

et al. 2008

J of Separation Science

View full text Add to dashboard Cite

show abstract

“…The difficult to-separate p, m-xylene isomers are separated with larger ot value (Otp/m = 1.10) than on the other CD sta- [12]. This might be attributed to the introduction of cinnamyl groups to the CD molecules.…”

Section: Separation Of Disubstituted Benzenes and Dimethylphenol Isomersmentioning

confidence: 87%