Method for the production of n,n-carbonyldiazoles

Details Method for the production of n,n-carbonyldiazoles Method for the production of n,n-carbonyldiazoles

C - Chemistry, Metallurgy

07

D

C07D 233/60 (2006.01)

Patent

CA 2552393

Disclosed is a method for producing N,N'-carbonyldiazoles by reacting azoles with phosgene in polar solvents from the group comprising ethers, ketones, and chlorinated aliphatic solvents. According to the inventive method, the azole and the phosgene are dosed such that 0.17 to 0.37 mole of phosgene are dosed during the time one mole of azole is dosed.

L'invention concerne un procédé de production de N,N'-carbonyldiazoles consistant à faire réagir des azoles avec du phosgène dans des solvants polaires issus du groupe comprenant des éthers, des cétones et des solvants chlorés aliphatiques. Cette invention est caractérisée en ce que l'azole et le phosgène sont introduits de manière dosée dans le solvant, de sorte qu'au moment où l'on ajoute une mole d'azole, l'on introduit également 0,17 à 0,34 mole de phosgène.

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