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Conformational preference in thiophene-2-carbaldehyde

✍ Scribed by Salman R. Salman

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
219 KB
Volume
20
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The 100 MHz ^1^H NMR spectra of thiophene‐2‐carbaldehyde have been obtained in different solvents and analysed. It was found that the SO‐cis conformation is more stable in all solvents, and that the proportion of the SO‐trans population increases with decreasing polarity of the solvent. CNDO/2 calculations predict that the SO‐cis is more stable than the SO‐trans conformation. The aldehyde coupling to the ring was calculated by the CNDO/2 method and compared with the experimental value.

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