Process for preparing 2,5-dichloro-3- nitroterephthalic acid

Details Process for preparing 2,5-dichloro-3- nitroterephthalic acid Process for preparing 2,5-dichloro-3- nitroterephthalic acid

C - Chemistry, Metallurgy

07

C

260/510.2

C07C 205/58 (2006.01)

Patent

CA 1159847

12,200 A PROCESS FOR PREPARING 2,5-DICHLORO-3-NITROTEREPHTHALIC ACID ABSTRACT OF THE DISCLOSURE The invention relates to a process for preparing 2,5-dichloro-3-nitroterephthalic acid by the direct nitration of 2,5-dichloroterephthalic acid in an essentially anhydrous medium comprising nitric acid, or its metal salts, in sul- furic acid. S P E C I F I C A T I O N

361876

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