Quinazolin-4-one derivatives possessing an isotopic atropisomerism (isotopic N-C axial chirality) based on -CH/CH discrimination were prepared. The diastereomeric quinazolin-4-ones bearing an asymmetric carbon as well as an isotopic atropisomerism were clearly discriminated by H and C NMR spectra and revealed to possess high rotational stability and stereochemical purity.
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http://dx.doi.org/10.1021/acs.joc.3c01004 | DOI Listing |
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