Carbon‐13 NMR spectra of 3‐aryl‐2‐thioxo‐4‐imidazolidinones. Conformational isomerism and substituent effects
- 1 March 1981
- journal article
- Published by Wiley in Magnetic Resonance in Chemistry
- Vol. 15 (3) , 225-229
- https://doi.org/10.1002/mrc.1270150303
Abstract
A 13C 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 CN 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.Keywords
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