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Enantiomer separation of 2-halocarboxylic acid esters by chiral complexation gas chromatography

✍ Scribed by Schurig, V. ;Ossig, A. ;Link, R.

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 363 KB
Volume: 11
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240110123

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✦ Synopsis

The enantiomer separation of 2-halocarboxylic acid esters on two chiral nickel(l1) bis-((perfluoroacy1)terpeneketonates) by complexation gas chromatography is described. The quantitative enantiomer separation of branched 2-halocarboxylic acid esters is achieved with nickel ( 11) bis (3-(heptafluorobutanoyl)(l R, 2S)-pinan-4-onate) 1 while unbranched 2-halocarboxylic acid esters are preferably separated on nickel(l1) bis(3-(heptafluorobutanoyl)- (19-10-methylenecamphorate) 2. The metal chelates 1 and 2 are accessible in both enantiomeric forms allowing the determination of the enantiomeric excess (ee) effective and reliable.

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