Process for the preparation of diaminotoluenes

Details Process for the preparation of diaminotoluenes Process for the preparation of diaminotoluenes

C - Chemistry, Metallurgy

07

C

260/598.4

C07C 209/36 (2006.01)

Patent

CA 1111451

ABSTRACT OF THE DISCLOSURE A process for the manufacture of 2,4- and 2,6-diaminotoluenes com- prises catalytically hydrogenating the corresponding molten nitro compound in the presence of water, adding hydrochloric acid to form the monohydrochlorides, crystallizing 2,6-diaminotoluene monohydrochloride, filtering it off and, if required, liberating the free bases by addition of an alkali.

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