Structurally simple, modular amino alcohols for the recognition of carboxylic acids. Application to the development of a new chiral solvating agent
F. Cuevas, P. Ballester, M. A. Pericàs
Org. Lett. 2005, 7, 5485-5487
Abstract: Two flexible receptors for carboxylic acids, based on 1-amino-3-fluoro-2-alcohol functional arrays and built on aminomethylpyridine platforms, are described. The C2-symmetric one [from 2,6-bis(aminomethyl)pyridine] has been shown to be an efficient CSA due to its ability to form geometrically different diastereomeric complexes enabling the discrimination between the enantiomers of a series of carboxylic acid in the 1H NMR spectra.