Process for preparing 1-chloro-2,4-diaminobenzene

Details Process for preparing 1-chloro-2,4-diaminobenzene Process for preparing 1-chloro-2,4-diaminobenzene

1999-03-22

2000-03-07

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564416, 564420, 564421, 564422, C07C20900

Patent

active

060342765

ABSTRACT:
Disclosed is an improved process for preparing 1-chloro-2,4-diaminobenzene by the selective hydrogenation of 1-chloro-2,4-dinitro-benzene wherein the hydrogenation is carried out in the presence of a modified Raney nickel catalyst containing about 70 to 95 weight percent nickel, about 4 to 10 weight percent aluminum, about 0.1 to 4 weight percent molybdenum, and from 0 to about 20 weight percent cobalt. The 1-chloro-2,4-diaminobenzene is useful as an intermediate for disperse dyes and for color photography.

REFERENCES:
patent: 3073865 (1963-01-01), Spiegler
patent: 3149161 (1964-09-01), Graham et al.
patent: 3350452 (1967-10-01), Rylander et al.
patent: 3361819 (1968-01-01), Kosak et al.
patent: 3474144 (1969-10-01), Craig et al.
patent: 3666813 (1972-05-01), Hindlin et al.
patent: 3928451 (1975-12-01), Krishnan
patent: 3989756 (1976-11-01), Fujine et al.
patent: 4059627 (1977-11-01), Kritzler et al.
patent: 4070401 (1978-01-01), Hirai et al.
patent: 4375550 (1983-03-01), Bird et al.
patent: 4929737 (1990-05-01), Lentz et al.
patent: 4960936 (1990-10-01), Baumeister et al.
patent: 5663434 (1997-09-01), Maleski
patent: 5689021 (1997-11-01), Cordier et al.
Vogel's Textbook of Practical Organic Chemistry, 5.sup.th Edition, Addision Wesley Longman Limited, Essex England, p. 451 (1989).

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