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Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Publication date
Priority claimed from CH753267Aexternal-prioritypatent/CH505186A/en
Priority claimed from CH462568Aexternal-prioritypatent/CH532117A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES354414A1publicationCriticalpatent/ES354414A1/en
Process for the preparation of disazo compounds, characterized by; O well A) copulate two coupling components of the formula ** (see formula) ** Which are linked together by a bivalent z-bridge without dye character, which contains at least one quaternized nitrogen atom, and in which A means the radical of an arylonic compound, while R'and r "each mean an alkyl group, with diazo compounds of amines of the formula D1-nh2 or d2-nh2 Where the symbols D1 and d2 mean monocyclic or bicyclic radicals, to form disazo compounds; O well B) to react at the same time or consecutively in two steps two dyes, the same or different, of the formula ** (see formula) ** Where D and r'have the same meaning as before; A'means an arilic radical and R'''means an alkyl group, Besides existing in one of the radicals A'and r' "a reactive substituent, With donor compounds of the bivalent bridge z without dye character and containing at least one quaternized nitrogen atom; O well E) treating a disazo compound in which two molecules of monoazoic dye of the formula ** (see formula) ** They are linked by means of the z-bridge without coloring character and containing at least one quaternizable nitrogen atom, with quaternizing agents, where when x1 is 1 and/or x2 is 1, or (a) z contains at least a cycloammonium group, or (b) at least one of the radicals d1 and d2 are quaternizable or quaternized. (Machine-translation by Google Translate, not legally binding)
ES354414A1967-05-291968-05-28Procedure for the preparation of disazoic compounds. (Machine-translation by Google Translate, not legally binding)
ExpiredES354414A1
(en)