Conformational mobility of the B ring in some steroids
β Scribed by C.R. Narayanan; M.R. Sarma
- Publisher
- Elsevier Science
- Year
- 1966
- Tongue
- French
- Weight
- 191 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
NMR spectral data are given for the A-ring in ten 4-en-3-one steroids, and the strategy of the spectral analysis is described. The data are interpreted in terms of an equilibrium between normal and inverted half-chair conformations, with the normal conformation predominant in all cases except when Z
## Abstract A theoretical conformational study based on density functional calculations provides evidence that the sterol and nonsterol cyclizations of squalene to triterpenes are controlled by conformational effects as has been previously suggested. It was found that different conformers of a mode