Conformational analysis of some 1,4-dioxepane systems. 2. Methoxy-1,4-dioxepanes
β Scribed by Espinosa, A.; Entrena, A.; Gallo, M. A.; Campos, J.; Dominguez, J. F.; Camacho, E.; Garrido, R.
- Book ID
- 127026493
- Publisher
- American Chemical Society
- Year
- 1990
- Tongue
- English
- Weight
- 789 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0022-3263
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## Abstract The 251 MHz ^1^H and the natural abundance 63.1 MHz ^13^C NMR spectra of 1,3βdioxepane (1) and 4,4,7,7βtetramethylβ1,3βdioxepane (2) have been investigated over the temperature range of 5 to β180 Β°C. While the spectra of 1 show no dynamic NMR effect, compound 2 exists in solution as a 1
## Abstract The ^1^H n.m.r. spectrum of 3βmethylβ2βoxoβ1,4βdioxepane was recorded at 300 and 60 MHz. The ring conformation was considered in terms of the spectral parameters and shown to be a twisted boat where the lactone grouping is approximately planar.