A Novel Synthesis of Imidazo(2,1-d)(1,2,4)triazine and Imidazo(2,1d)( 1,2,5)triazepine Derivatives via Ketene-N,N-acetal. -The synthesis of previously unreported derivatives of imidazotriazine ( cf. (X), (XIII), (XV)) and imidazotriazepine (cf. (XII), (XVII)) via the heterocyclic ketene-N,N-acetal
β¦ LIBER β¦
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
β 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[1,2β__a__]pyridine system was investigated as a synthon for the building of very attractive fused triazines, a planar, angular __tri__βheterocycle with potential biological activity. Thus ethyl 3βnitroimidazo[1,2β__a__]pyridineβ2βcarboxylate was treated with ammonia or with