Reactive dyestuffs containing a fiber-reactive alkylsulphonylpyrimidyl group

Abstract

Abstract wherein R is hydrogen or a lower alkyl radical of 1 to 5 carbon atoms; A is a pyridine, pyrimidine, pyridazine, pyrazine, thiazine, triazine, quinoline, phthalazine, cinnoline, phenazine, or phenanthridine radical which contains at least one lower alkyl sulfonyl, phenyl sulfonyl, benzyl sulfonyl, naphthyl sulfonyl, benzthiazolyl sulfonyl, thiazolyl sulfonyl, thiadiazolyl sulfonyl, oxazolyl sulfonyl, benzimidazolyl sulfonyl, or pyrimidyl sulfonyl, said sulfonyl radical containing no substituents or substituents selected from the class consisting of the bromine, chlorine, hydroxyl, nitro, cyano, sulfo, carboxyl, carboxy lower alkyl, lower carboalkyl, lower carboalkoxy, lower alkoxy, lower alkyl, lower alkyl sulfonyl amino and acetyl amino radical, said reactive sulfonyl substituent being linked to a carbon atom of the heterocyclic moiety A; and m represents a number from 0.5 to 8. The dyeings which can be obtained with the new dyestuffs are characterized by good to very good fastness properties, especially by excellent fastness to wet processing. WHEREIN F is the radical of an organic dyestuff; X is -CH CH-, Reactive dyestuffs particularly useful in the dyeing of textile materials containing hydroxyl groups or nitrogen, such as natural and regenerated cellulose, wool, silk, synthetic polyamides, and synthetic polyurethanes, are prepared and have the formula:

Inventors

• 👤 K Schundehutte
• 👤 K Trautner

Bibliographic Details