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Novartis AG
Original Assignee
JR Geigy AG
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Publication date
Priority claimed from CH859163Aexternal-prioritypatent/CH431758A/en
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Publication of ES301867A1publicationCriticalpatent/ES301867A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of reactive dyes, characterized in that 1 mol of an organic dye of the formula I is reacted ** (See formula) ** where D means the radical of an organic dye, R means hydrogen or a lower alkyl radical and n is 1 or 2, with n moles of a compound that introduces the radical of formula II ** (See formula) ** where Hal means halogen up to the atomic number 35, X means a monovalent substituent either and R1 means a lower alkyl radical, to form a dye of the formula III ** (See formula) ** where D, R and n have the meaning stated in formula I and Hal, X and R1 have the meaning stated in formula II, or by synthesizing the reactive dyes of the formula III based on components of which at least one contains the radical of the formula II, linked by means of an amino group of the formula (see formula) (Machine-translation by Google Translate, not legally binding)
ES0301867A1963-07-101964-07-09Procedure for the preparation of reagent colorants. (Machine-translation by Google Translate, not legally binding)
ExpiredES301867A1
(en)
Procedure for obtaining new 1,2,3-triazolic fluorescent derivatives of 3-phenyl-cumarine (Machine-translation by Google Translate, not legally binding)