Conformational and Spectral Investigations of Thiazolidinone Derivatives by1H and13C NMR Spectroscopy
- 1 July 1983
- journal article
- research article
- Published by Taylor & Francis in Spectroscopy Letters
- Vol. 16 (7), 499-511
- https://doi.org/10.1080/00387018308062371
Abstract
The magnetic non-equivalence of isomeric proton and 13C nuclei has been investigated on rotational isomers of 3-aryl-2,4-thiazolidinediones and 3-aryl-2-arylimino-4-thiazolidinones. The detection of magnetic non-equivalence for proton nuclei was better in quinoline solutions. Free energies of activation have been estimated. The varying hetero atom in the hetero ring, in comparision to earlier data1–3, is seen to effect the additive shift parameters and the shielding of distant aryl carbon bonded to hetero ring.Keywords
This publication has 3 references indexed in Scilit:
- 1H and13C NMR studies on 3-aryl-5-alkyl-2,4-oxazolidinediones. The magnetic non-equivalence of isomeric nucleiMagnetic Resonance in Chemistry, 1979
- Syntheses ofN-Substituted 2,4-Dioxotetrahydro-1,3-thiazoles and 2,4, 5-Trioxotetrahydro-1,3-thiazole1Synthesis, 1976
- Restricted Internal Rotation in 1-Arylhydantoins, 3-Arylhydantoins, and 3-Aryl-2-Thiohydantoins: Reversal of the Effective Sizes of Methyl and ChlorineCanadian Journal of Chemistry, 1973