Process for preparing n,n'-carbonyldiazoles

Details Process for preparing n,n'-carbonyldiazoles Process for preparing n,n'-carbonyldiazoles

C - Chemistry, Metallurgy

07

D

C07D 233/56 (2006.01) C07D 235/04 (2006.01) C07D 249/08 (2006.01)

Patent

CA 2541444

A process is provided for preparing N,N'-carbonyldiazoles by reacting azoles with phosgene in halogenated aliphatic hydrocarbon solvents, the entirety of the azole for reaction being introduced in the solvent, followed by the addition of phosgene.

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