✦ LIBER ✦
A Highly Stereoselective Synthesis of C(11)-Functionalized Aromatic Steroids by an Intramolecular Benzocyclobutene-Olefin -Cycloaddition. Preliminary Communication
✍ Scribed by Wolfgang Oppolzer; Martin Petrzilka; Kurt Bättig
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- German
- Weight
- 246 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The racemic cis‐anti‐trans‐steroids 9 to 11 have been synthesized in a highly stereoselective manner starting from 4‐methoxybenzocyclobutene carboxylic acid via the key step 8 → 9. (cf. Scheme 2).