Method for producing...

Details Method for producing... Method for producing...

C - Chemistry, Metallurgy

07

C

C07C 253/30 (2006.01) C07C 255/60 (2006.01) C07C 317/46 (2006.01)

Patent

CA 2696841

A method for producing N-methacryloyl-4-cyano-3-trifluoromethylaniline, wherein 4-cyano-3-trifluoromethylaniline is crystallized from a mixed solvent of methanol and water, and the obtained 4-cyano-3-trifluoromethylaniline is reacted with methacryloyl chloride improved separation property even in industrial production in a large scale.

La présente invention a pour objet un procédé de production de N-méthacryloyl-4-cyano-3-trifluorométhylaniline, dans lequel la 4-cyano-3-trifluorométhylaniline est cristallisée dans un mélange de solvants constitué de méthanol et d'eau, et la 4-cyano-3-trifluorométhylaniline ainsi obtenue est mise à réagir avec du chlorure de l'acide méthacrylique. Ce procédé de production permet d'améliorer l'échec de la séparation des liquides même dans une production commerciale à grande échelle.

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