Stereospecific Intramolecular C–H Amination of 1-Aza-2-azoniaallene Salts
✍ Scribed by Bercovici, Daniel A.; Brewer, Matthias
- Book ID
- 115518261
- Publisher
- American Chemical Society
- Year
- 2012
- Tongue
- English
- Weight
- 414 KB
- Volume
- 134
- Category
- Article
- ISSN
- 0002-7863
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📜 SIMILAR VOLUMES
1-ha-2-azoniaallene cations / Isocyanates / 4,5-Dihydro-5-oxo-l,2,4-triazolium salts / Cinnolinium salts / Cycloadditions / Calculations, AM1 1-Aza-2-azoniaallene salts 3, prepared in situ from geminal to give pyrazolium salts 8. According to AM1 calculations the chloroalkylazo compounds 2 with Lewi
## Abstract 1‐Aza‐2‐azoniaallene cations 3, prepared in situ from geminal chloro(alkylazo) compounds 2, react with acetylenes 4 to give either 1__H__‐pyrazolium salts 6 or 4__H__‐pyrazolium salts 7 or mixtures of both. 4__H__‐Pyrazolium salts with a hydrogen atom attached to C(4) rearrange to the p