Process for the preparation of aniline condensation dyestuffs

Details Process for the preparation of aniline condensation dyestuffs Process for the preparation of aniline condensation dyestuffs

1980-12-24

1983-03-15

Berch, Mark L.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544347, C07C24106, C09B 1700, C09B 1702, C09B 5700

Patent

active

043768598

ABSTRACT:
Process for the preparation of aniline condensation dyestuffs by reacting aniline and/or an alkylaniline batchwise, in cycles or continuously with nitrobenzene, which can be substituted and/or diazoaminobenzene, with warming and in the presence of a catalyst, characterized in that the reaction mixture is worked up continuously.

REFERENCES:
patent: 1988499 (1981-03-01), Kimmel
patent: 4056530 (1977-11-01), Maekawa
Maekawa II, Chem. Abs. 88, 63262g, (1977).
Chem. Absts. vol. 88, #10, Mar. 6, 1978, p. 45 63262z JP-A-77 135 336, (Orient Chemical Industries, Ltd.).
Chem. Absts. vol. 84, No. 10, Mar. 1976, p. 95, No. 61207d, (Orient Chemical Industries, Ltd.), 23-10-75 Japanese A 75 134 028.

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