Process for the preparation of N,N'-carbonyldiazoles and azolide salts

   
   

This invention relates to the preparation of N,N'-carbonyldiazoles in a particularly advantageous manner by reacting corresponding azolide salts with phosgene in an aromatic compound or an ether as solvent. The azolide salts are preferably prepared by a novel process from an azole that is reacted with a compound of the formula M'R.sup.7 or MgR.sup.8 Z' in the presence of a solvent.

Esta invención se relaciona con la preparación de N, N'-carbonyldiazoles de una manera particularmente ventajosa reaccionando las sales correspondientes del azolide con fosgeno en un compuesto aromático o un éter como solvente. Las sales del azolide son preparadas preferiblemente por un proceso de la novela de un azole que se reaccione con un compuesto del fórmula M'R.sup.7 o MgR.sup.8 Z ' en la presencia de un solvente.

 
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