Considerable effort hae been direoted towards identification of the preferred oonformation of the 1,4-oyclohexadiene ring. The most recent information canes from an electron diffraction study of the gaseous diene, and demonstrates that the ring adopts a boat conformation with a dihedral angle a, ( f
A comment on the use of homoallylic coupling constants to probe the solution conformation of 1,4-dihydrobenzenes and 1,4-dihydronaphthalenes
β Scribed by Martin C. Grossel
- Book ID
- 108380306
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 234 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
In the course of our studies on the synthesis of anthracyclines [I-41 based on the Diels-Alder additions of exocyclic s-cis-butadiene moieties grafted onto 7-oxabicyclo[2.2. Ilheptane derivatives 1, we observed 'H-NMR spectra of the corresponding adducts 2 with measurable homoallylic 'J(H,H) couplin
## Abstract ^13^C FT single resonance spectra are obtained for two isomers of 2,6βdichloroβ1,4βoxathiane; one of the isomers is a racemic mixture. From a combined study of the various longβrange carbonβproton coupling constants the conformations of both isomers could be determined. Each isomer exis