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Cyclodextrin derivatives for GC separation of racemic mixtures of volatile compounds. Part VIII: 2,6-di-O-methyl-3-O-pentyl-γ-cyclodextrin and 2,6-di-O-methyl-3-O-(4-oxo-pentyl)- and 2,6-di-O-pentyl-3-O-(4-oxo-pentyl)-β-and -γ-cyclodextrins

✍ Scribed by Bicchi, Carlo ;D'amato, Angela ;Manzin, Valeria ;Galli, Anna ;Galli, Mario

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
309 KB
Volume
18
Category
Article
ISSN
0935-6304

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✦ Synopsis

In previous papers, 2,6-di-O-methyl-3-O-pentyl-~-cyclodextrin (CD) was demonstrated to be successful in separating volatile compounds, while avoiding the drawbacks of 2,3,6-tri-O-methyl-P-CD in terms of column stability and operating temperature. Since a CD chiral selector of universal use has not yet been found, and at least two (or more) columns coated with different CD derivatives are therefore necessary for routine work, the performance of 2,6-di-O-methyI-3-0-pentyl-y-C D, 2'6d i -O-methyl-3-0-(4-0~0-penty1)-y-CD, 2,6-di-O-pentyl-3-0-(4-oxo-pentyl)-P-CD, and 2 4di-O-penty1-3-0-(-4-oxo-pentyl)-y-CD diluted in polysiloxanes for the separation of volatile compounds in aromas and essential oils will be illustrated; each column coated with each of the newly synthesized CD derivatives was evaluated by analyzing more than 150 different racemates with different structures.

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