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On the Reaction of 1-Aza-2-azoniaallene Salts with Carbodiimides

✍ Scribed by Wang, Quanrui ;Troll, Carsten ;Fischer, Helmut ;Jochims, Johannes C. ;Amer, Atef


Publisher
Wiley (John Wiley & Sons)
Year
1993
Tongue
English
Weight
547 KB
Volume
126
Category
Article
ISSN
0009-2940

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## 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

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