摘要:
Azo dyestuffs which, in the form of the free acid, correspond to the formula ##STR1## wherein R.sub.1 denotes hydrogen, methyl or chlorine,R.sub.2 denotes hydrogen, chlorine, acetylamino, methoxy, ethoxy, nitro or carboxyl,R.sub.3 denotes hydrogen, sulpho-C.sub.1 -C.sub.2 -alkyl, carboxy-C.sub.1 -C.sub.2 -alkyl or C.sub.1 -C.sub.4 -alkyl,R.sub.4 denotes hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sub.5 denotes hydrogen or acyl andR.sub.6 denotes hydrogen, methyl, methoxy, ethoxy, chlorine, carboxyl, nitro or sulpho,and their preparation and use for dyeing substrates which can be dyed with direct dyestuffs.
摘要:
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.
摘要:
Pyrimidines substituted in the 5-position by fluorine, some of which are new, are prepared from pyrimidines of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and denote fluorine or trifluoromethyl,by stepwise reaction with hydrogen chloride.
摘要:
A dyestuff of the formula ##STR1## wherein X.sub.1 denotes amino, cyanamino, acetylamino, guanidino, ureido or hydroxyl;Y.sub.1 and Z.sub.1 denote hydroxyl or amino, with the proviso that at most 2 of the 3 radicals X.sub.1, Y.sub.1 and Z.sub.1 denote hydroxyl;R.sub.1 represents hydrogen, nitro, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, nitrile, C.sub.1 -C.sub.4 -alkylsulphonyl, trifluoromethyl, phenylsulphonyl, benzylsulphonyl, phenoxy, carbo-C.sub.1 -C.sub.4 -alkoxy, carbophenoxy, carbonamido, C.sub.1 -C.sub.4 -alkylcarbonylamino, benzoylamino, sulphonamido, or carbonamido or sulfonamide mono-substituted or disubstituted by C.sub.1 -C.sub.4 -alkyl, phenyl, or benzyl; andR.sub.2 and R.sub.3 represent hydrogen; chlorine C.sub.1 -C.sub.4 -alkyl, carbo-C.sub.1 -C.sub.4 -alkoxy, carbonamido; carbonamido mono-substituted or disubstituted by C.sub.1 -C.sub.4 -alkyl, phenyl, or benzyl, or C.sub.1 -C.sub.4 -alkoxyand a process for coloring substrates using such dyestuff.
摘要:
Dyestuffs of the formula ##STR1## wherein R.sub.1 represents hydrogen, alkyl or aralkyl,R.sub.2 represents R.sub.1 or aryl,A represents C.sub.2 -C.sub.6 -alkylene,X represents R.sub.2 or acyl,n represents 1-7,m represents 1 or 2 andthe rings B and D can contain customary radicals,with the proviso that n is at least 2 if X represents acyl,give, when mixed with emulsifiers, dyestuff preparations which are in the liquid or dissolved form under dyeing conditions. The use of additional dispersing agents, protective colloids, levelling agents and carriers when dyeing polyester fibres thereby becomes superfluous.
摘要:
Disperse dyestuffs of the formula ##STR1## wherein Q.sub.1 and Q.sub.2 are hydrogen or the group V-(A-O).sub.n Z, but do not at the same time represent hydrogen, A -- denotes an alkylene group, V -- denotes a direct bond or a bridge member, Z -- denotes hydrogen, alkyl, aryl, aralkyl or acyl and N -- denotes an integer from 2-10 and the rings A, B and D can be further substituted. The dyestuffs are suitable for dyeing polyester fibres from an aqueous liquor by the exhaustion process since they are distinguished by a good affinity and build-up power. The dyeings are very clear and display good general fastness properties, such as fastness to light, sublimation and measuring.
摘要:
Azobarbituric acid derivatives characterized in that in their free acid form they have the following tautomeric structure are disclosed: ##STR1## The azobarbituric acid derivatives are characterized in that X and Y rings can each carry one or two substituents from the series comprising .dbd.O, .dbd.S, .dbd.NR.sub.7, --NR.sub.6 R.sub.7, --OR.sub.6, --SR.sub.6, --COOR.sub.6, --CN, --CONR.sub.6 R.sub.7, --SO.sub.2 R.sub.8, ##STR2## alkyl, cycloalkyl, aryl and aralkyl, the total number of the endocyclic and exocyclic double bonds for each of the rings X and Y being three.The new azobarbituric acid derivatives are other than those of azobarbituric acid, azouracil and uracil-5-azobarbituric acid and their salts. The compounds are useful as pigments which pigments are useful for pigmented paints, in printing inks, distempers or emulsion paints, inter alia.
摘要:
Dyestuffs of the formula ##STR1## wherein R.sub.1 represents alkyl or aryl,R.sub.2 represents halogen, CN, CF.sub.3, NO.sub.2, Q.sub.1, --OQ.sub.1, --CONQ.sub.1 Q.sub.2 or --NHCOQ.sub.1,R.sub.3 represents halogen, CN, CF.sub.3, Q.sub.1 or --OQ.sub.1 andK represents the radical of an aniline coupling componentand whereinQ.sub.1 denotes alkyl or aryl andQ.sub.2 denotes hydrogen, alkyl or aralkylpossess very high tinctorial strength and are outstandingly suitable for dyeing polyester fibres, which are dyed in clear orange-red to red shades having good fastness to light, wet treatment and sublimation. The alkyl, aralkyl and aryl radicals mentioned may be further substituted by nonionic groups or by the radical COOH.
摘要:
Acid halides and anhydrides of acids of the formula ##STR1## with the substituent definitions given in the description are obtained by reacting the corresponding acids with organic or inorganic acid halides or acid anhydrides. The new compounds are intermediate products for the preparation of new reactive dyestuffs.
摘要:
Novel reactive dyestuffs of the formula ##STR1## having the substituent meanings specified in the description are highly suitable for dyeing and printing hydroxyl- and amido-containing textile materials. They produce very fast dyeings and prints in high yields.