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Carbon-13 NMR spectra of 3-aryl-2-thioxo-4-imidazolidinones. Conformational isomerism and substituent effects

✍ Scribed by Mohammad A. Khadim; Lawrence D. Colebrook

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
443 KB
Volume
15
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

A ^13^C NMR study of a series of 3‐aryl‐2‐thioxo‐4‐imidazolidinones, which are capable of existing as enantiomeric or diastereomeric rotational isomers about the aryl CN bond, shows that rates of internal rotation are slow at the probe temperature. The effects of hetero‐ and aryl‐ring substituents on hetero‐ring carbon atoms have been established.

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