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Synthèse et Hererocyclisation des (Pyrazolyl-3(5))-2 Benzimidazoles en Catalyse Par Transfert de Phase

✍ Scribed by E. M. Essassi; J. Fifani


Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
174 KB
Volume
96
Category
Article
ISSN
0037-9646

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✦ Synopsis


Fuslon o f o-dlamines w l t h pyrazolylhydrazldes 2-z gives the new 2-pyrazolylbenzlmidazoles 3-21. The a p p l l c a t l o n of phase t r a n s f e r c a t a l y s l s t o the N-alkylatlon of compounds --3s-3d leads to pyrazlnes 4a-S and dlazeplnes 2-z.

Le regain d ' l n t e d t pour les biheterocycles derives du benzlmldazole, repose prlncipal e m n t sur leurs p r c p r l e t e s complexantes e t phannacologiques*-6.


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