C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/578.4
C07C 225/22 (2006.01) B01J 23/40 (2006.01) B01J 23/70 (2006.01) B01J 27/02 (2006.01) B01J 27/08 (2006.01)
Patent
CA 1213906
Process for Preparation of 3,3'- or 3,4'-Diaminobenzophenone Abstract of the Disclosure Preparation of 3,3'- or 3,4'-diaminobenzophenone by nitrating a chloronitrobenzophenone mixture obtained by the Friedel-Crafts reaction between 3- or 4-nitrobenzoyl chloride and chlorobenzene, and catalytically reducing and dechlorinating the resulting chlorodinitrobenzophenone mixture in the presence of a reduction catalyst and a dehydro- chlorinating agent.
427658
Kawashima Saburo
Sugimoto Kenichi
Tanabe Yoshimitsu
Yamaguchi Akihiro
Yamaguchi Keizaburo
Kirby Eades Gale Baker
Mitsui Chemicals Incorporated
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