Diastereoselective cyclisations of chiral α-acyliminium ions
✍ Scribed by Bernard P. Wijnberg; W.N. Speckamp
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 193 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Diastereomeric clusters of general formula [MAB~2~]^+^ and [MA~2~B]^+^ (M = Li(I), Na(I), Ag(I), Ni(II)‐H, or Cu(II)‐H; A = (__R__)‐(−)‐ and (__S__)‐(+)‐(1‐aminopropyl)phosphonic acid; B = (1__R__)‐(−)‐ and (1__S__)‐(+)‐(1‐aminohexyl)phosphonic acid) have been readily generated in the e
Pyrrolidino(or isoindolo) [ 1,3]benzothiazines I a,b were efficiently synthesized in a four-step sequence from the known o-(benzylthio) benzyl alcohol 2. The key step was the nucleophilic attack of the sulfur atom onto N-acyliminium ion 6 which was generated in high acidic medium from 6o-carbinol la