Saito K, Miwa S, Iida A, Fujimoto Y, Caytan E, Roussel C, Kitagawa O. Detection of Isotopic Atropisomerism Based on
ortho-H/D Discrimination.
Org Lett 2021;
23:7492-7496. [PMID:
34515490 DOI:
10.1021/acs.orglett.1c02723]
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Abstract
Racemic and optically active 3-(2-deuteriophenyl)-2-(1-phenylpropan-2-yl)quinazoline-4-thiones were prepared. The nuclear magnetic resonance spectra clearly show that they exist as a 1:1 mixture of diastereomers due to the isotopic atropisomerism based on ortho-H/D discrimination (N-C axial chirality) and a chiral carbon.
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