摘要:
Dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description are suitable for the dyeing and printing of hydroxyl- and amido-containing materials.
摘要:
The new polyazo reactive dyestuffs of the formula ##STR1## in which the substituents have the meaning given in the description are highly suitable for the dyeing or printing of hydroxyl- or amido-containing materials. The dyeings and prints obtained are distinguished by high fibre-dyestuff bonding stability and by particularly good stability to oxidizing agents.
摘要:
Reactive dyestuffs of the formula ##STR1## in which ##STR2## and Z=a heterocyclic reactive group and the remaining groups have the meaning indicated in the description, are outstandingly suitable for dyeing and printing materials containing hydroxyl groups or amide groups.
摘要:
Reactive dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description, are highly suitable for the dyeing and printing of hydroxyl- and nitrogen-containing materials, such as cellulose, wool, silk, polyamides, polyurethanes.
摘要:
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.
摘要:
Optionally metallized azo dyestuffs which in the form of the free acid correspond to the formula ##STR1## wherein K is the radical of a benzene, naphthalene, pyrazolone, pyridone, pyrimidone, acetoacetic acid arylide or aminopyrazole coupling component;A is a non-ionic substituent;X is ##STR2## wherein W is a direct bond or a bridge member to a C atom of the benzene or naphthalene nucleus or the coupling component K;R is hydrogen or C.sub.1 -C.sub.4 -alkyl;B is a direct bond or a bridge member, especially -CO- or -SO.sub.2 -, to a C atom of Q;Q is a reactive radical;m is 0, 1 or 2;n is 0, 1 or 2;p is 0 or 1;q is 0, 1 or 2; andr is 0 or 1;and their use for the dyeing and printing of natural and regenerated cellulose fibre materials such as cotton and rayon, as well as natural and synthetic polyamide fibre materials, for example those of wool, silk, poly-.epsilon.-caprolactam or polycondensate of hexamethylene-diamine and adipic acid. The dyeings obtained, espeically those on cotton and rayon, are distinguished by good fastness properties, especially fastness to wet processing and to light.
摘要:
Unsymmetrical chromium mixed complex dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 denote C.sub.1 -C.sub.4 -alkyl, nitrile, carbonamide or X-Z, X denotes a direct bond or a bridge member to a C atom of the rings A, B, C or D or to a 3-C atom of the pyrazoles and Z denotes SO.sub.3 H, COOH or OSO.sub.3 H and A, B, C and D can possess further substituents, are suitable for the dyeing and printing of nitrogen-containing fibrous materials in yellow shades.
摘要:
Chlorine-containing pyrimidines are selectively hydrogenated with elimination of hydrogen chloride, without other substituents and/or the aromatic ring being significantly attacked, by using a hydrogenation catalyst and a hydrogen chloride acceptor. This process gives predominantly new pyrimidines.
摘要:
Cationic dyestuffs of the formula ##STR1## WHEREIN A and B denote aromatic-carbocyclic or aromatic-heterocyclic radicals,D denotes the groups --O--R.sub.2, ##STR2## R denotes hydrogen, alkyl, aralkyl, alkenyl, alkoxy or aryl, X denotes a bridge member andAn.sup.(.sup.-) denotes an anion,Are suitable for dyeing and printing of natural and synthetic materials, particularly of polyacrylonitrile, copolymers of acrylonitrile with other vinyl compounds, of acid modified polyesters and acid modified polyamides.
摘要:
Azo dyestuffs of the formula ##STR1## in which D represents the radical of a diazo component,R denotes alkyl, cycloalkyl, aralkyl or aryl,X represents a nitrile group or an optional substituted carbonamide or carboxylic acid ester group,A represents oxygenWhereinR.sub.1 -r.sub.4 denote hydrogen, alkyl or aralkyl as well as their preparation and use for dyeing of synthetic materials are disclosed. For example, polyolefines, polyvinyl polymers, cellulose 2 1/2 acetate, cellulose triacetate and particularly polyesters are dyed by customary dyeing and printing proceses to give yellow to blue dyeings and prints with good fastness properties especially fastness to light and sublimation.