The completely assigned 1H and 13C NMR spectra of the title diastereoisomers in solutions of and CDCl 3 are reported. NOE experiments show that these molecules adopt speciÐc conformations with no rota-DMSO-d 6 tion about the C-2ÈN bond in either solvent. In ring A of the steroid is in a twist-boat c
X-ray structure analysis of 4-pregnen-11α-ol-3,20-dione—A steroid
✍ Scribed by Vivek K. Gupta; Rajnikant; K. N. Goswami; K. K. Bhutani
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 304 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0232-1300
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## Abstract The title compound **1** is a further example of an olefinic alcohol that undergoes ether formation under basic conditions **(→ 3)** although the double bond is not activated by an electron‐attracting group. This unusual reactivity is due to steric compression, which is increased in the
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