Malinowska M, Jarzyński S, Pieczonka A, Rachwalski M, Leśniak S, Zawisza A. Optically Pure Aziridin-2-yl Methanols as Readily Available
1H NMR Sensors for Enantiodiscrimination of α-Racemic Carboxylic Acids Containing Tertiary or Quaternary Stereogenic Centers.
J Org Chem 2020;
85:11794-11801. [PMID:
32805106 PMCID:
PMC7506949 DOI:
10.1021/acs.joc.0c01564]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
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Enantiopure
aziridin-2-yl methanols 3–7 are used
as highly effective sensors for enantiodiscrimination
of α-racemic carboxylic acids containing tertiary or quaternary
stereogenic centers. A linear correlation between theoretical and
observed % ee values for CSA-3 and enantiomerically enriched
samples of mandelic acid has been observed, indicating the possible
application of these compounds in the ee determination. The free NH
and OH groups in 3–7 ensure good
recognition.
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