Regioselective electrophilic oxidation of a 5-amino-endo-tricyclo[5.2.1.02,6]decenyl enaminone. Synthesis of a novel heterocyclic compound
โ Scribed by Namakkal G Ramesh; Antonius J.H Klunder; Binne Zwanenburg
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- French
- Weight
- 78 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
An unexpected tandem regioselective oxidation and cyclization of 5-((S)-2%-hydroxymethylpyrrolidin-1%-yl)-endo-tricyclo[5.2.1.0 2,6 ]deca-4,8-dien-3-ones 7 is reported. The reaction proceeds smoothly to afford novel tetracyclic compounds 8 and 9 in good yield, The structure of 8 was established by single-crystal X-ray analysis. Surprisingly, the C8 C9 norbornene double bond remains intact under these oxidative conditions.
๐ SIMILAR VOLUMES
## 2-Acetylbenzothiazole (1) reacts with dimethylformamide dimethylacetal (DMF-DMA) to afford the enaminone 2. Compound 2 reacts regioselectively with some nitrilimines 5a-d and nitrile oxides 6b-d to afford the novel pyrazole and isoxazole derivatives 11a-d and 12b-d, respectively, which react wi
## Abstract 1โSubstitutedโ3โdimethylaminopropenones **1aโd** reacted with acetylacetone and with ethyl acetoacetate to yield regioselectively 2,3,6โtrisubstituted pyridines. Refluxing **1aโd** in acetic acid/ammonium acetate resulted in the formation of 6โsubstitutedโ3โaroylpyridines, whereas reflu