Ternary ion-pair complexation: A protocol for chiral discrimination and the assignment of absolute configuration of chiral hydroxy acids
New Journal of Chemistry, ISSN: 1369-9261, Vol: 37, Issue: 12, Page: 4025-4030
2013
- 27Citations
- 14Captures
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Article Description
The study demonstrates the utility of ternary ion-pair complex formed among BINOL (1,1′-Bi-2-naphthol), a carboxylic acid and an organic base, such as, dimethylpyridine (DMAP), 1,4-diazabicyclo[2.2.2]octane (DABCO), as a versatile chiral solvating agent (CSA) for the enantiodiscrimination of carboxylic acids, measurement of enantiomeric excess (ee) and the assignment of absolute configuration of hydroxy acids. The proposed mechanism of ternary complex has wider application for testing the enantiopurity owing to the fact that the binary mixture using BINOL alone does not serve as a solvating agent for their discrimination. In addition, the developed protocol has an excellent utility for the assignment of the absolute configurations of hydroxy acids. © 2013 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
Bibliographic Details
Royal Society of Chemistry (RSC)
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