An efficient enantioselective NMR analysis of atropisomeric quinolines in the promotion of chiral phosphoric acid is described, in which a variety of racemic 4-aryl quinolines were well-recognized with up to 0.17 ppm ΔΔδ value. Additionally, the optical purities of different nonracemic substrates could be evaluated fast via NMR analysis with high accuracy.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8222546 | PMC |
| http://dx.doi.org/10.3389/fchem.2021.672704 | DOI Listing |
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