A rearranged hydroperoxide from the reduction of artemisinin
โ Scribed by Lai-King Sy; Shi-Man Hui; Kung-Kai Cheung; Geoffrey D. Brown
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 399 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0040-4020
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โฆ Synopsis
Lithium aluminium hydride reduction of artemisinin produces two unexpected rearrangement products in addition to those reported previously. The structure of the major rearrangement product, a tertiary hydroperoxide, was determined by 2D-NMR and chemical reactions. A mechanism is proposed for this rearrangement, based on the observation that dihydroartemisinin can also be converted into the same hydroperoxide in alkaline solution.
๐ SIMILAR VOLUMES
The recent paper by Deno and co-workers' has p-ted us to report the results obtaimd some time ago in our laboratory regarding the rearr vt of tertiary alicyclic hydroperoxides. Rearrangements of aliphatic alkyl hydroperoxides have not been explored in luch depth. Perhaps the most well-known example