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Original Articles

SYNTHESE DE TRIOXO-2,4,5-DIAZA-1,3-PHOSPHOLIDINES-2-TRISUBSTITUTEES ET REACTIONS AVEC LES ALCOOLS ET LES AMINES

Pages 27-35 | Received 05 Mar 1979, Published online: 19 Dec 2006
 

Abstract

Les trioxo-2,4,5-diaza-1,3-phospholidines-2-trisubstituées, 3, sont synthétisées par réaction, en absence de base, du chlorure d'oxalyle avec les phosphordiamides primaires 1. Les cycles 3 sont ouverts avec rupture d'une liaison [dbnd]P(O)+N'CO[sbnd]par les alcools et [dbnd]P(O)[sbnd]N'°CO[dbnd]par les amines. Ces résultats sont interprétés par la formation d'un complexe pentacoordiné X dont la décomposition, dans le cas des amines, est plus lente que l'attaque au niveau de l'un ou l'autre des carbonyles.

The 2,4,5-trioxo-1,3-diaza-2-phospholidine trisubstituted, 3, are synthetized in the absence of any base, by the reaction of oxalyle chloride on the primary phosphordiamides 1. The 3 cycles are opened with a [dbnd]P(O)+N'CO[sbnd] bond cleavage in the presence of alcohols and a [dbnd]P(O)[sbnd]N'°CO one in the presence of amines. It can be assumed from the results that + pentacoordinate X complex is formed, whose breakdown in the case of amines is slower than the attack on one or the other of the carbonyles.

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