Thiol-yne Click Post-Modification for the Synthesis of Chiral Microporous Organic Networks for Chiral Gas Chromatography

2020 ◽  
Vol 12 (4) ◽  
pp. 4954-4961 ◽  
Author(s):  
Yuan-Yuan Cui ◽  
Cheng-Xiong Yang ◽  
Xiu-Ping Yan
Keyword(s):  
Gas Chromatography ◽  
Post Modification ◽  
Chiral Gas Chromatography ◽  
Organic Networks

scholarly journals Corrigendum to “Investigation of borneols sold in Taiwan by chiral gas chromatography” [J Food Drug Anal 26 (2018) 348–352]

2019 ◽  
Vol 27 (1) ◽  
pp. 373
Author(s):  
Tsung-Jung Ho ◽  
Chien-Che Hung ◽  
Tzenge-Lien Shih ◽  
Lih-Ming Yiin ◽  
Hao-Ping Chen
Keyword(s):  
Gas Chromatography ◽  
Chiral Gas Chromatography

Pheromonal Production of and Response to Optically Active Epoxydienes in Some Geometrid Moths (Lepidoptera: Geometridae)

1994 ◽  
Vol 49 (7-8) ◽  
pp. 516-521 ◽  
Author(s):  
M. Tóth ◽  
G. Szőcs ◽  
W. Francke ◽  
F. Schmidt ◽  
P. Philipp ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Minor Component ◽  
Field Trapping ◽  
Sympatric Species ◽  
Optically Active ◽  
Close Relative ◽  
Pheromone Components ◽  
Pheromone Specificity ◽  
Reference Samples ◽  
Chiral Gas Chromatography

In pheromone extracts of calling female Chiasma clathrata L. (Lepidoptera: Geometridae), a defoliator pest of alfalfa, (Z,Z,Z)-3,6,9-heptadecatriene and (Z,Z)-6,9-cis-3,4-epoxyheptadecadiene was identified. Chiral gas chromatography using a modified cyclodextrin and synthetic reference samples proved the natural epoxide to show (3R, 4S)-configuration. In field trapping tests, only the pure (3R, 4S)-enantiom er of the epoxide attracted males. The addition of the triene component was synergistic. Males of the sympatric species Tephrina arenacearia Hbn. (Lepidoptera: Geometridae) were caught only in traps with baits containing the (3S, 4R)-enantiomer [together with a previously described minor component, (Z,Z)-3,9-cis- 6,7-epoxyheptadecadiene]. In trapping tests conducted in a different biotope, Abraxas grossulariata L. (Lepidoptera: Geometridae) males were attracted by the (3S, 4R)-enantiomer, whereas the (3R, 4S)-enantiomer attracted a close relative, Abraxas sylvata Scop. (Lepidoptera: Geometridae). The present results suggest that one of the key mechanisms responsible for pheromone specificity among both the two alfalfa geometrids and the two A braxas species in their respective biotops, may be the use of different enantiomers of the same polyenederived epoxide as a sex pheromone component. It is probable that this discrimination mechanism is widespread among moth species utilizing epoxide pheromone components

Separation of amino acid enantiomers VIA chiral derivatization and non-chiral gas chromatography

2008 ◽  
Vol 1180 (1-2) ◽  
pp. 131-137 ◽  
Author(s):  
Marylène Bertrand ◽  
Annie Chabin ◽  
André Brack ◽  
Frances Westall
Keyword(s):  
Gas Chromatography ◽  
Amino Acid ◽  
Amino Acid Enantiomers ◽  
Chiral Derivatization ◽  
Chiral Gas Chromatography
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