Synthesis of new chiral imidazolium salts derived from amino acids: their evaluation in chiral molecular recognition
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Other documents of the author: Altava, Belen; Barbosa, Dalgi S.; Escorihuela, Jorge; Luis, Santiago V.; Burguete, M. Isabel
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comunitat-uji-handle3:10234/8639
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http://dx.doi.org/10.1016/j.tetasy.2009.03.028 |
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Title
Synthesis of new chiral imidazolium salts derived from amino acids: their evaluation in chiral molecular recognitionAuthor (s)
Date
2009Publisher
ElsevierISSN
9574166Bibliographic citation
Tetrahedron Asymmetry, 20, 9, p. 999-1003Type
info:eu-repo/semantics/articleAbstract
A family of new imidazolium salts derived from natural amino acids has been synthesized and tested for NMR enantiodiscrimination, as chiral shift reagents, of carboxylic acids. These imidazolium receptors contain ... [+]
A family of new imidazolium salts derived from natural amino acids has been synthesized and tested for NMR enantiodiscrimination, as chiral shift reagents, of carboxylic acids. These imidazolium receptors contain different structural modifications and the splitting of the signals of the acids, after addition of the corresponding CSRs, depends on these structural variables. Compound 8b exhibited the strongest chiral solvating properties for racemic Mosher acid and was recognized as a suitable CSR for the determination of its enantiomeric composition. © 2009 Elsevier Ltd. All rights reserved. [-]
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