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The enantiomeric excess values were determined by converting the epoxy alcohols into their Mosher ester derivatives and analyzing the 1H NMR spectra of the corresponding Mosher esters
-
1H NMR spectra of the corresponding Mosher esters.
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56
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67650006426
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In the tosylation reaction of 24a,b, formation of minor amount of the corresponding ditosylated products was also observed and these undesired products were eliminated by column chromatography
-
In the tosylation reaction of 24a,b, formation of minor amount of the corresponding ditosylated products was also observed and these undesired products were eliminated by column chromatography.
-
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57
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67650018829
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The enantiomeric excess values of 27a,b were determined by chiral HPLC analysis.
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The enantiomeric excess values of 27a,b were determined by chiral HPLC analysis.
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The enantiomeric excess values of 38a,b were determined by chiral HPLC analysis (Chiral Cel OD, petroleum ether (bp 30-60°C)-i-PrOH (98:2) 1 mL/min, 254 mm.
-
The enantiomeric excess values of 38a,b were determined by chiral HPLC analysis (Chiral Cel OD, petroleum ether (bp 30-60°C)-i-PrOH (98:2) 1 mL/min, 254 mm.
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