Preparation method of 2-chloro-5-nitrobenzoic acid_Kain Industrial Additive

Background and overview[1] The method for preparing 2-chloro-5-nitrobenzoic acid in the prior art is to use the method of refining o-chlorobenzoic acid after nitration, but due to the nitration, more 2-chloro-3-nitrobenzoic acid is produced. For isomers, it is difficult to achieve higher purity using conventional purification methods. Generally, it can only be controlled at around…