Abstract: Reactive dyestuffs of the formula ##STR1## in which A=H, halogen, alkyl, alkoxy, acylamino or amino,B=H, alkyl or alkoxy,X=--CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 --Y, whereY=a radical which can be removed under alkaline conditions andZ=a fibre-reactive radical.

Abstract: Dyestuffs of the formula ##STR1## where the substituents have the meanings indicated in the description produce on hydroxyl- and amido-containing materials dyeings of excellent fibre-dyestuff bond stability, excellent stability to oxidizing agents and good wet fastness properties.

Abstract: A new process for the preparation of substituted 2,4-diamino-6-flurotriazines of the formula ##STR1## in which the substituents have the meanings given in the description, comprises reacting ammonium salts of the formula ##STR2## in an aqueous medium at pH values of about 2.5-10 with 2,4,6-trifluorotriazine in a continuous process. The reaction products can be converted to dyestuffs without isolating the intermediates.

Abstract: New process for the preparation of 4,5,6-trichloropyrimidine, characterized in that a protonated dialkylaminopropionitrile of the general formula I ##STR1## in which R is C.sub.1 -C.sub.4 -alkyl and an.sup.- is an anion is treated with chlorine in an inert solvent in the presence of organic catalysts or PCl.sub.3 or PCl.sub.5.

Abstract: Triphendioxazine and triphendithiazine direct dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description produce on natural and synthetic OH-- and NH-- containing materials clear blue dyeings having good light and wet properties.

Abstract: An azo dyestuff of the formula ##STR1## in which u and v=H or SO.sub.3 H and u.noteq.v,R=H, unsubstituted C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl substituted by OH, halogen, SO.sub.3 H or OSO.sub.3 H,m=0 or 1 and ##STR2## in which R.sub.1 =H, unsubstituted C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkyl substituted by OH, OSO.sub.3 H, SO.sub.3 H or COOH. Such dye is particularly suitable for producing on cotton red dyeings and prints having excellent fiber-dyestuff bond stability, stability to oxidizing agents and wash-off properties.

Abstract: Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to form an adduct that still contains at least two free NCO groups, and subsequently reacting this adduct with a (cyclo)aliphatic diamine, to form an adduct suitable for dyeing and pigmenting macromolecular substances, in particular for coloring PUR-based paints, coatings and laminates.

Abstract: A dyestuff which, in the form of its free acid, corresponds to the formula ##STR1## wherein W=a direct bond or a bridge member to a C atom of the naphthalene nucleus C or the benzene nucleus A, wherein the bridge member is ##STR2## wherein R=H or C.sub.1 -C.sub.4 -alkyl,alkylene=C.sub.2 -C.sub.5 -alkylene andarylene=unsubstituted or substituted phenylene,R.sub.1, R.sub.2 and R.sub.3 =H--, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, hydroxyl, halogen, carboxyl, sulphonamido, nitro, alkyl or arylcarbonylamino, --SO.sub.3 H, --SO.sub.2 --CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 --CH.sub.2 --Z,whereinZ=--OSO.sub.3 H, --SSO.sub.3 H, OPO.sub.3 H.sub.2, --OCOCH.sub.3, dialkylamino, or quaternary ammoniumR.sub.4 =H or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkoxy, --OSO.sub.3 H, --SO.sub.3 H, --COOH or hydroxyl.X=a fibre-reactive radical,p=1 or 2,q=0 or 1,l, m and n=0 or 1,k=1 or 2 andMe=Cu.

Abstract: Metal complex dyestuffs which in the form of the free acid correspond to the formula ##STR1## in which the substituents have the meaning given in the description are, depending on the meanings of the substituents, suitable for use as reactive dyestuffs for cotton, wool or polyamide, as direct dyestuffs for cotton or as pigment dyestuffs. Dyeings are obtained which have good fastness properties, in particular good wet-, light- and chlorine fastness.

Abstract: Water-soluble dyestuffs of the formulaA--N.dbd.N--B--N.dbd.N--C--N.dbd.N--KwhereinA denotes sulphophenyl or sulphonaphthyl, which are optionally further substituted,B denotes sulpho-1,4-naphthylene, which is optionally further substituted,C denotes 1,4-phenylene or 1,4-naphthylene, which are optionally further substituted, andK denotes the radical of an optionally functionally modified coupling component of the hydroxybenzene series, aminobenzene series, aminopyrazole series, pyridone series or acetoacetic acid arylide series, or of barbituric acid or citrazinic acid,and their use for dyeing nitrogen-containing fibre materials, such as wool and polyamide, and for dyeing leather.

Abstract: The invention relates to fibre-reactive monoazo dyestuffs of the general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 and n have the meaning given in the text of the application, and also relates to a process for the preparation of these dyestuffs and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as wool and cotton.

Abstract: The invention provides reactive dyestuffs of the formula ##STR1## wherein X is a fibre-reactive group of the triazine or pyrimidine series; R.sub.3 and R.sub.4 are each hydrogen; n is 0 or 1; and k is a pyridone or pyrimidone coupling component; the dyestuffs are particularly suitable for dyeing and printing natural and regenerated cellulose fibre materials and synthetic polyamide fibre materials.

Abstract: Process for the preparation of 1-aminobenzene-2-sulphonic acids of the formula ##STR1## wherein R.dbd.H or a substituent andn=1-4,and their salts, in particular their alkali metal salts, by oxidation of compounds of the formula ##STR2## wherein R.sub.1 .dbd.H, a cation, in particular an alkali metal cation, or a radical of the formula ##STR3## characterized in that the oxidation is carried out in a weakly acidic to alkaline pH range. The process can also be carried out as a one-pot process, using the corresponding benzothiazoles as starting materials.

Abstract: A metal free azo dyestuff of the formula ##STR1## in which K is the radical of a coupling component of pyridone, andR.sub.3 and R.sub.4 each independently is hydrogen; C.sub.1 -C.sub.6 -alkyl; C.sub.1 -C.sub.6 -alkyl substituted by OH, SO.sub.3 H, COOH or OSO.sub.3 H; phenyl; naphthyl; or phenyl or naphthyl substituted by SO.sub.3 H or COOH.

Abstract: Use of mono-copper complexes of dyestuffs of the formula ##STR1## wherein X is H or SO.sub.3 H andR is H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, halogen or sulpho,and of mixtures thereof with the bis-copper complexes of (II) in amounts of up to 50% by weight, for dyeing natural and synthetic materials, in particular cellulose materials, leather, wool and polyamide.

Abstract: The invention relates to new dyestuffs of the general formula ##STR1## wherein the radicals D, R and R' have the meaning given in the text of the application, processes for their preparation and their use for dyeing materials containing hydroxyl groups or nitrogen.

Abstract: Azo dyestuffs of the formula ##STR1## wherein A, R.sub.1, m and n have the meaning given in the description. The dyestuffs are suitable for dyeing cellulose-containing materials, especially cotton, which may be natural or regenerated, as well as union fabrics containing cotton, and paper. The dyestuffs in general give red to violet, as well as reddish brown, color shades.The dyestuffs are distinguished by good light-fastness, substantivity and wet-fastness. Their great suitability for high temperature dyeing processes and for subsequent creaseproof finishing deserves particular mention.

Abstract: Fibre-reactive disazo dyestuffs of the formula ##STR1## wherein R.sub.1 to R.sub.4, R.sub.5, R.sub.6 and n have the meaning indicated in the descriptionand their use for dyeing and printing materials containing hydroxyl groups and materials containing amide groups, in particular textile materials.

Abstract: Dyestuffs of the formula ##STR1## wherein Fb, W, R.sub.1, R.sub.2, R.sub.3, n and m have the meaning given in the description,and their use for dyeing and printing materials containing hydroxyl groups or nitrogen, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for washfast dyeing and printing natural or regenerated cellulose.The dyeings obtained are distinguished by good fastness to wet processing.