RESOLUTION OF A RACEMIC ISOLEUCINE MIXTURE BY USING METHYL L-MANDELATE
A methyl ester of L-mandelic acid was found to be an effective resolving agent for resolution of commercial DL-isoleucine. The resolution was based on Steglich esterification between methyl L-mandelate and Boc-DL-isoleucine. The two resolved isomers were easily separated by using a conventional flas...
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Published in | Chimica et Natura Acta Vol. 4; no. 3; p. 156 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
12.12.2016
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Online Access | Get full text |
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Summary: | A methyl ester of L-mandelic acid was found to be an effective resolving agent for resolution of commercial DL-isoleucine. The resolution was based on Steglich esterification between methyl L-mandelate and Boc-DL-isoleucine. The two resolved isomers were easily separated by using a conventional flash-column chromatography, giving quantitatively good yields. Unfortunately, the methyl L-mandelate was found to be ineffective to resolve four stereoisomers of Fmoc- isoleucine. |
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ISSN: | 2355-0864 2541-2574 |
DOI: | 10.24198/cna.v4.n3.10991 |