The conformation of trimethylene sulphite
✍ Scribed by Gordon Wood; M. Miskow
- Book ID
- 104211795
- Publisher
- Elsevier Science
- Year
- 1966
- Tongue
- French
- Weight
- 176 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Seven isomeric 4,5,6‐trimethyl‐2‐oxo‐1,3,2‐dioxathians, __cis__‐4‐__trans__‐6‐dimethyl‐__r__‐2‐oxo‐1,3,2‐dioxathian and two isomeric 4,5,5,6‐tetramethyl‐2‐oxo‐1,3,2‐dioxathians were prepared and their ^1^H n.m.r. spectra analysed. The values of the vicinal coupling constants reported ea
Ab initio calculations, in the frame of MO theory, were carried out on both most stable (chair) conformers of trimethylene cyclic sulfite. Optimized geometries derived at the HF/6-31G\* level reveal that both conformers possess a rigid chair conformation with the S=O group located either axially (co