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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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On the Reaction of 1-Aza-2-azoniaallene
✍ Wang, Quanrui ;Mohr, Susanne ;Jochims, Johannes C. 📂 Article 📅 1994 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 684 KB

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

On the Reaction of 1-Aza-2-azoniaallene
✍ Wang, Quanrui ;Al-Talib, Mahmoud ;Jochims, Johannes C. 📂 Article 📅 1994 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 732 KB

## 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