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Original Articles

COMPOSES DU PHOSPHORE DICOORDONNE-ACTION DES ORGANOMAGNESIENS SUR LES DERIVES DU TRIAZAPHOSPHOLE-1,2,4,3: SYNTHESE DE DERIVES DE LA H-4 TRIAZAPHOSPHOLINE-1,2,4,3 ET MISE EN EVIDENCE DE L'EQUILIBRE DE SCHLENK

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Pages 333-345 | Received 24 Jan 1984, Accepted 23 Mar 1984, Published online: 19 Dec 2006
 

Abstract

2,5-disubstituted 1,2,4,3-triazaphospholes–dicoordinated phosphorus compounds–react with organo-magnesium halides, in ether, to give the corresponding triazaphospholinyl magnesium halides. Their hydrolysis, alcoholysis or hydrogen abstraction from suitable solvents afford the corresponding triazaphospholines which are easily sulfured. By intervention of the Schlenk equilibrium in benzene, we obtain a mixture of the triazaphospholinyl magnesium halide and a complex of the triazaphosphole reagent with magnesium halide occurring in the solution. Some properties of these new triazaphospholines were investigated.

Les triazaphospholes-1,2,4,3 substitués en 2,5 (composés du phosphore dicoordonné) réagissent sur les organomagnesiens mixtes, en solution dans l'éther, pour donner les magnésiens des H-4 triazaphospholines-1,2,4,3 correspondantes avec formation d'une liaison P[sbnd]C. L'hydrolyse ou l'alcoolyse de ces dérivés (ou měme l'abstraction d'hydrogène d'un solvant approprié) conduisent aux triazaphospholines correspondantes qui sont facilement soufrées. Quelques propriétés de ces triazaphospholines nouvelles ont été étudiées.

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