Abstract
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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© 2007 Institute of Chemistry, Slovak Academy of Sciences
Articles in the same Issue
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- Separation and characterization of products from thermal cracking of individual and mixed polyalkenes
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- Enantioselective extraction of mandelic acid enantiomers by L-dipentyl tartrate and β-cyclodextrin as binary chiral selectors
- Mechanism of thermal decomposition of cobalt acetate tetrahydrate
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Articles in the same Issue
- Step by step towards understanding gold glyconanoparticles as elements of the nanoworld
- Structure—activity relationships for in vitro oxime reactivation of chlorpyrifos-inhibited acetylcholinesterase
- Separation and characterization of products from thermal cracking of individual and mixed polyalkenes
- Mobility of important toxic analytes in urban dust and simulated air filters determined by sequential extraction and GFAAS/ICP-OES methods
- Effect of addition of ameliorative materials on the distribution of As, Cd, Pb, and Zn in extractable soil fractions
- Effect of gamma irradiation on trichromatic values of spices
- Homo- and heteronuclear complexes of a new, vicinal dioxime ligand
- Synthesis of new triphenodithiazine- and indolocarbazolediones of biological interest
- Dielectric relaxation of butyl acrylate—alcohol mixtures using time domain reflectometry
- Ab initio study of small coinage metal telluride clusters AunTem (n, m = 1, 2)
- Binding affinities and spectra of complexes formed by dehydrotetrapyrido[20]annulene and small molecules
- Comparison of spectrophotometric and HPLC methods for determination of lipid peroxidation products in rat brain tissues
- Enantioselective extraction of mandelic acid enantiomers by L-dipentyl tartrate and β-cyclodextrin as binary chiral selectors
- Mechanism of thermal decomposition of cobalt acetate tetrahydrate
- Three-component, one-pot synthesis of 3,4-dihydropyrimidin-2-(1H)-ones catalyzed by bromodimethylsulfonium bromide