Water-soluble disazo compounds, having a fiber-reactive group of the vinylsulfone series, suitable as dyestuffs

摘要

Water-soluble disazo compounds, processes for their preparation of their use as dyestuffsPPDisazo compounds of the general formula (1) defined below, ##STR1## which have fiber- reactive properties and are suitable as useful dyestuffs for dyeing material containing carboxamide groups and/or material containing hydroxy groups, such as fiber material, for example wool and cellulose fiber materials, are described.PPIn formulas (1):P PD* is phenylene, which can be substituted by 1 or 2 substituents from the group comprising lower alkyl, lower alkoxy, chlorine, bromine, sulfo and carboxy, or is a naphthylene which is optionally substituted by sulfo; PPD is the meta- or para-phenylene radical; PP A is a direct bond or the methylene group or the group -- N(R)--, where R has the meaning given below;PPR is lower alkyl, which can be substituted;PPY.sup.1 and Y`each denote the vinyl group or the 62 -chloroethyl or -sulfatoethyl group andP PM is a hydrogen atom or an alkali metal.