USING OPTICALLY ACTIVE CHIRAL CROWN ETHER AT ENANTIOMERIC SEPARATION OF AMINES
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The synthesized S-enantiomer of the crown ether was used as an adsorbent to separate the racemic mixture of L-alanine ether of phenamine into individual diastereomers by column chromatography. Chromatographic separation occurred due to the formation of complexes of different stability between diastereomers and optically selective adsorbents on a host-guest principle. The separated diastereomers were converted into enantiomers by hydrolysis. The structure and optical activity of the synthesized crown ether and separated enantiomers were investigated by physicochemical methods
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1997 ◽
Vol 9
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pp. 150-152
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2003 ◽
Vol 996
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pp. 233-237
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2020 ◽
Vol 130
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pp. 437-442
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1995 ◽
Vol 18
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pp. 1947-1955
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1991 ◽
Vol 14
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pp. 3673-3683
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2005 ◽
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pp. 2275-2281
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1987 ◽
Vol 405
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pp. 145-153
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