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A Novel Synthesis of Imidazo[2,1-d][1,2,4]triazine and Imidazo[2,1-d][1,2,5]triazepine Derivatives via Ketene-N,N-acetal

✍ Scribed by El-Saghier, Ahmed M. M.; Maihub, Abdussalam A.; Al-Shirayda, Hatif A.


Book ID
120803400
Publisher
Taylor and Francis Group
Year
1997
Tongue
English
Weight
285 KB
Volume
27
Category
Article
ISSN
0039-7911

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## Abstract The imidazo[1,2‐__a__]pyridine system was investigated as a synthon for the building of very attractive fused triazines, a planar, angular __tri__‐heterocycle with potential biological activity. Thus ethyl 3‐nitroimidazo[1,2‐__a__]pyridine‐2‐carboxylate was treated with ammonia or with