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Carbon-13 NMR investigation of some substituted 1,3-thiazolidin-4-ones

✍ Scribed by Christopher Richard Joseph Woolston; John Barry Lee; Frederick John Swinbourne

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
300 KB
Volume
31
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^13^C NMR spectra of a series of 2,3‐diaryl‐1,3‐thiazolidin‐4‐ones were measured and the resonance signals produced by the methylene, methine and carbonyl groups of the heterocyclic ring assigned. The variations in their chemical shifts were examined and the influence of S‐oxidation was investigated. 3‐Benzyl‐2‐phenyl‐1,3‐thiazolidin‐4‐one, 3‐butyl‐2‐phenyl‐1,3‐thiazolidin‐4‐one and 2,3‐diphenyl‐5‐methyl‐1,3‐thiazolidin‐4‐one were also examined, the last compound being shown to exist as a mixture of isomers. T~1~ relaxation times were determined for three thiazolidinones and related to structural effects.

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