1,2,3-Triazolo(1,5)Azines et Autres Hétérocycles Azotés Dérivés D'Azine-carboxaldéhydes
✍ Scribed by Georges Maury; Driss Meziane; Driss Sraïri; Jean-Paul Paugan; Renée Paugam
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 389 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0037-9646
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
α‐(N)‐azine‐carboxaldehydes are convenient precursors of 1,2,3‐triazolo (1,5) azines. Through oxidative cyclization of the corresponding hydrazones we have prepared the new 1,2,3‐triazolo (1,5‐b)pyridazine and 1,2,3‐triazolo (1,5‐a)pyrazine. Unlike the other azaindolizines these compounds are degraded by electrophiles. Attempts to prepare imidazo(1,5‐c) pyrimidine or derivatives have been carried out either from 4‐aminomethylpyrimidine or from ethyl 2‐(4‐pyrimidinyl)propionate.
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