ES221120A1 - Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Novartis AG
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Ciba Geigy AG
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Priority to ES0221120ApriorityCriticalpatent/ES221120A1/en
Publication of ES221120A1publicationCriticalpatent/ES221120A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Process for the preparation of o, or '' - dioxy-azo dyes and their complex metal compounds, characterized in that, in dyes of formula R1-n = N-r 2 n = 3 n = N-r4 In which they mean R1 a benzene radical containing an oxy group in the para position with respect to the azo group, and a carboxylic acid group in the ortho position with respect to the latter, R2 a naphthalene radical linked para to the azo groups, R3 a benzene radical linked in the para position to the azo groups, and containing an alkoxy group in the ortho position with respect to the group -n = N-r4, and R4 is a naphthalene radical containing at least one sulfonic group and, as the sole auxocromo group, an oxy linked to the azo group, At least the O-oxy-o-alkoxy group is transformed into the metal or o -'-dioxyazoic complex and because the metal compound thus obtained is eventually demetalated again, to which end, in the event that the metal complex formation in the O-oxycarboxylic acid group of the radical r1 has taken place, in all cases at least the metal in complex bond is separated from this group again. (Machine-translation by Google Translate, not legally binding)
ES0221120A1955-04-091955-04-09Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
ExpiredES221120A1
(en)
Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of o, o'-dioxiazocolorantes and its complex metal compounds (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of polyzzolooling disy, and of its complex metallic compounds (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of alpha-gamma-dioxy-amidas of organic acid substituted or not replaced (Machine-translation by Google Translate, not legally binding)