Journal
JOURNAL OF SEPARATION SCIENCE
Volume 32, Issue 2, Pages 180-184Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.200800444
Keywords
Chiral; Enantiomer; Enantioresolution; High performance liquid chromatography (HPLC); Methyl jasmonate; Nucleodex-beta-PM
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Funding
- Ministerio de Educacion y Cultura [AGL2007-65772]
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A method based on the use of HPLC for the enantioselective resolution of the four stereoisomers of methyl jasmonate (MJ) with no need for the previous formation of the diastereoisomers is developed. To that end, a Nucleodex-beta-PM column as well as an optimization process considering different flow rates and mobile phase compositions were required. As a result, 0.8 mL/min and 55:45 methanol/water composition were the conditions selected to carry out the separation of the stereoisomers. Isolation of pure (-)- and (+)-MJ was accomplished by collecting the HPLC fractions corresponding to their elution time. SPE was subsequently used to concentrate and change the solvent of the HPLC fractions collected. Chiral CC and polarimetry were additionally employed to evaluate the purity and optical rotation, respectively, of the enantiomers separated. The results found in this study are particularly relevant considering that MJ stereoisomers are not commercially available.
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