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Enantioselective extraction of mandelic acid enantiomers by L -dipentyl tartrate and β -cyclodextrin as binary chiral selectors
Jiao, F. P., Chen, X. Q., Hu, W. G., Ning, F. R. and Huang,K. L. Enantioselective extraction of mandelic acid enantiomers by L -dipentyl tartrate and β -cyclodextrin as binary chiral selectors Chemical Papers, Vol.61, No. 4, 2007, 326-328
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Jiao, F. P.
Chen, X. Q.
Hu, W. G.
Ning, F. R.
Huang,K. L.
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| Title |
Enantioselective extraction of mandelic acid enantiomers by L -dipentyl tartrate and β -cyclodextrin as binary chiral selectors
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
4
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| ISSN |
0366-6352
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| Start page |
326
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| End page |
328
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
290000 Engineering and Technology
290600 Chemical Engineering
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| Abstract/Summary |
A new binary chiral selector system effective for the enantioselective extraction of racemic mandelic acid is presented. While L-dipentyl tartrate and β-cyclodextrin had a very low enantioselectivity as single selectors, a preferential extraction of D-mandelic acid to the organic phase was found in the binary selector system. Using decanol as organic solvent and pH of a phoshate buffer equal to 2.3, the distribution coefficients of D-and L-mandelic acids as high as 14.9 and 7.0, respectively, and the enantioselectivity value of 2.1 were found at optimum concentration of β-cyclodextrin.
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