Organic magnetic resonance

1H and 13C NMR studies on 3??aryl??2??thioxo??4??oxazolidinones and 3??arylrhodanines

Z Aksaç, E Pinar, S Içli

Index: Aksac, Zihni; Pinar, Esat; Icli, Siddik Organic Magnetic Resonance, 1983 , vol. 21, # 9 p. 548 - 551

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Citation Number: 6

Abstract

Abstract 3-Aryl-2-thioxo-4-oxazolidinones and 3-arylrhodanines have been studied for magnetic non-equivalence of diastereotopically related proton and 13 C nuclei in rotational isomers, and for steric interactions between the aryl and heterocyclic moieties of these compounds. For the majority of rotational isomers the barriers to internal rotation about the aryl C [BOND] N bond were> 100 kJ mol− 1, due to the steric bulk of the thiocarbonyl ...