2002•Chemical CommunicationsOpen access
Colour indicator for enantiomeric excess and assignment of the configuration of the major enantiomer of an amino acid ester
Richard A. van Delden, Ben L. Feringa
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Abstract
A colour indicator for the full range of enantiomeric excess (-100%-->100% ee) is presented which is based on visual colour inspection of a liquid crystal doped with the analyte, i.e. the methyl ester of amino acid phenylglycine, providing the enantiomeric excess and allowing the assignment of the major enantiomer.