ES278914A1 - Procedure for the preparation of tina colorants provided of groups sulfate (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of tina colorants provided of groups sulfate (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.)
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CH787361Aexternal-prioritypatent/CH407372A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES278914A1publicationCriticalpatent/ES278914A1/en
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
C09B62/503—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being an esterified or non-esterified hydroxyalkyl sulfonyl or mercaptoalkyl sulfonyl group, a quaternised or non-quaternised aminoalkyl sulfonyl group, a heterylmercapto alkyl sulfonyl group, a vinyl sulfonyl or a substituted vinyl sulfonyl group, or a thiophene-dioxide group
C09B62/505—Anthracene dyes
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Coloring
(AREA)
Abstract
Process for the preparation of vat dyes provided with sulfate groups, characterized in that vat dyes having a pure halogenalkyl group, directly linked to a carbon atom of a heterocyclic ring, or in particular aromatic, of the molecule dye (preferably a halogenalkyl group of low molecular weight, with 4, at most, carbon atoms, such as a bromoethyl group or, in particular, a chloromethyl group) are treated with sulfuric acid containing sulfuric anhydride, at room temperature. at most, only weakly elevated. (Machine-translation by Google Translate, not legally binding)
ES278914A1961-07-051962-07-04Procedure for the preparation of tina colorants provided of groups sulfate (Machine-translation by Google Translate, not legally binding)
ExpiredES278914A1
(en)
A method for the preparation of 2-methyl-3-chloromethyl-6-chloro-7-sulfamil-3,4-dihydro-1,2,4-benzotiadiazine (Machine-translation by Google Translate, not legally binding)