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Original Articles

Nouvelle Voie de Synthèse de Pyrazolotriazines Phosphonatées

, , , &
Pages 1596-1602 | Received 30 Oct 2013, Accepted 27 Feb 2014, Published online: 25 Sep 2014
 

GRAPHICAL ABSTRACT

RESUME:

La synthèse d’une série de dérivés de pyrazolotriazines est décrite en deux étapes. L’action de l’hydrazine sur les thioamides phosphonylés conduit à la formation de 3,5-diamino-4-phosphonopyrazoles qui réagissent avec l’imidate N-acylé pour donner les pyrazolotriazines phosphonatées correspondantes.

Mots clés: Thioamides phosphonylés; hydrazine; 3,5-diamino-4-phosphonopyrazole; imidate N-acylé; pyrazolotriazine phosphonatée

The synthesis of a series of pyrazolotriazine derivatives in two steps is described. The reaction of hydrazine with phosphonyl substituted thioamides leads to the formation of 3,5-diamino-4-phosphonyl-pyrazoles. The latter react with methyl N-propionyl benzimidate yielding the corresponding phosphonyl substituted pyrazolotriazines.

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