## SwmnarY ZnBr2-catalysed phenylthloalkylatlon of ketene bls(trlmethylsllyl)acetals, obtalned from carboxyllc acids, with appropriate a-chlorosulphldes can be used to prepare y-and 6lactones O-Sllylated enolate chemistry has recently produced new and improved methods for forming carbon-carbon bon
The presence of a seven-membered α,β-unsaturated lactone in obacunone
✍ Scribed by T. Kamikawa; T. Kubota
- Publisher
- Elsevier Science
- Year
- 1961
- Tongue
- French
- Weight
- 540 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0040-4020
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Several a,fl-unsaturated esters containing also isolated olefins or other functionalities subject to saturation were selectively reduced to the corresponding saturated esters by magnesium in methanol. During a total synthesis of pentalenene sesquiterpenes a requirement arose for the selective satura
## Abstract The irradiation of 17 β‐hydroxy‐2‐oxa‐androst‐4‐en‐3‐one (**1**) yield a cyclopropane derivative **2**, which is the result of a rearrangement, formally analogous to the ‘type A rearrangement’ of the enones. Two other products, the dihydroxy compound **5** and the dimer **6**, have also