Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-05-19
1977-04-19
Trousof, Natalie
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
25230127, 25230129, 260240G, 2602936, 260308A, 260310R, 25230125, 25230126, C07D40514
Patent
active
040187896
ABSTRACT:
Disclosed are optical brightening agents, such agents being 2-(2')-benzimidazoyl-furans substituted in the 5-position of the furan ring by a 1-aryl-pyrazolyl-3, -4 or -5 radical, by a pyrazolyl-1 radical or by a 2-aryl-v-triazolyl-4 radical, such compounds being in free base, acid addition or quaternary ammonium salt form.
REFERENCES:
patent: 3155571 (1964-11-01), Sarett et al.
patent: 3162574 (1964-12-01), Forsyth et al.
patent: 3174974 (1965-03-01), Siegrist et al.
patent: 3497525 (1970-02-01), Harnisch et al.
patent: 3637734 (1972-01-01), Harnisch et al.
Littlewood Peter Stuart
Mercer Alec Victor
Doyle Thomas C.
Sandoz Ltd.
Sharkin Gerald D.
Trousof Natalie
Vila Richard E.
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