Process for preparation of 3,3'- or 3,4'-...

Details Process for preparation of 3,3'- or 3,4'-... Process for preparation of 3,3'- or 3,4'-...

C - Chemistry, Metallurgy

07

C

260/597.8

C07C 209/36 (2006.01)

Patent

CA 1211469

Process for Preparation of 3,3'- or 3,4'- Diaminodiphenylmethane Abstract of the Disclosure Preparation of 3,3'- or 3,4'-diaminodiphenylmethane by catalytically reducing and dechlorinating, in the presence of a reduction catalyst, a dinitrobenzophenone compound having the formula Image wherein X is chlorine and attached to a position 4 or 6 on the benzene ring, and Y is hydrogen or chlorine with the proviso that when Y is hydrogen, the nitro group is attached to a position 3' or 4', and when Y is chlorine, Y is attached to a position 4' and the nitro group is attached to a position 3'.

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