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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Priority claimed from CH1206968Aexternal-prioritypatent/CH527875A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES370418A1publicationCriticalpatent/ES370418A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of dioxacin dyes, characterized by reacting compounds of the formula ** (see formula) ** In which X means each time a hydrogen atom or a dissociable substituent and Y means each time a hydrogen or halogen atom or a non-ionogenic substituent, with compounds of the formula ** (see formula) ** In which R1 is an aromatic radical containing a sulfamidic group and to which the h2n group and the ho group are bonded in a neighboring position, To form intermediate products of the formula ** (see formula) ** In which X, y and r1 have the same meaning that has been attributed to them before, And reacting atoms with compounds of the formula ** (see formula) ** In which R2 is an aromatic radical to which the h2n group and the ho group are linked in a neighboring position, To form dyes of the formula ** (see formula) ** In which R1, r2 and y have the same meaning as before. (Machine-translation by Google Translate, not legally binding)
ES370418A1968-08-121969-08-11Procedure for the preparation of dioxacinic dyes. (Machine-translation by Google Translate, not legally binding)
ExpiredES370418A1
(en)
Procedure for the preparation of new compounds of binuclear heterociclic n, n'-diglicidyl. (Machine-translation by Google Translate, not legally binding)