Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
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.
Maurer Werner
Zimmer Johann
Bayer Aktiengesellschaft
Berch Mark L.
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