Abstract:
A sublimable monoazo dyestuff of the formula ##STR1## wherein X is alkyl of 1-4 carbon atoms is used as the dyestuff in the process for printing synthetic, hydrophobic materials, treated cellulose materials or materials containing both by transfer printing using formulations containing said sublimable monoazo dyestuff.
Abstract:
Water-soluble azo compounds, preparation thereof and use thereof as dyesThere are described monoazo compounds conforming to the formula (1) ##STR1## which are used as dyes having fiber-reactive properties for preparing strong, red, fast dyeings and prints on hydroxy- and/or carboxamido-containing material, in particular fiber material, such as wool and synthetic polyamide fibers and in particular cellulose fibers, such as cotton.In the formula (1):M is hydrogen or an alkali metal; R.sup.1 is hydrogen or sulfo; R.sup.2 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, sulfo, hydroxy, halogen or carboxy; R.sup.3 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms; Y is vinyl or is ethyl which contains in the .beta.-position a substituent which is eliminable with alkali to form a vinyl group; p is 1 or 2; the one --SO.sub.3 M group is attached to the naphthalene ring para or meta to the amino group.
Abstract:
Water-insoluble azo dyestuffs suitable for dyeing and printing synthetic hydrophobic fiber materials are produced by azo coupling and have the formula ##STR1## wherein D is free from ionic moieties and is an unsubstituted or substituted phenyl, thiazole, isothiazole, benzthiazole, thiadiazole, benzisothiazole or thiophene moiety;A is alkylene having 2 to 6 carbon atoms which is unsubstituted or substituted by --OH;B is hydrogen, alkyl having 1 to 4 carbon atoms, hydroxyalkyl having 2 to 4 carbon atoms, alkoxyalkyl having 1 to 4 carbon atoms in the alkoxy moiety and a total of 3 to 8 carbon atoms, alkanoyloxyalkyl having 2 to 6 carbon atoms in the alkanoyl moiety and a total of 3 to 8 carbon atoms, hydroxypolyoxyalkylene having 4 to 12 carbon atoms, alkoxypolyoxyalkylene having 1 to 4 carbon atoms in the alkoxy moiety and a total of 5 to 16 carbon atoms, alkanoyloxypolyoxyalkylene having 2 to 5 carbon atoms in the alkanoyl moiety and a total of 5 to 16 carbon atoms, alkanoyl having 2 to 6 carbon atoms or benzoyl;R.sup.1 is hydrogen, methyl or chlorine;R.sup.2 is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms;and R.sup.3 is hydrogen or alkoxy having 1 to 8 carbon atoms.
Abstract:
The process for manufacture of an N-hydroxyalkylcarbazole of the formula ##STR1## wherein R is H, CH.sub.3 or C.sub.2 H.sub.5 and n is a number from 0 to 4 which comprises reacting carbazole with an epoxide of the formula ##STR2## or a chlorohydrin of the formula ##STR3## at temperatures from 20.degree. to 150.degree. C. in the presence of a base and a phase transfer catalyst, in an organic solvent which is immiscible with water.
Abstract:
A process for the manufacture of esters of aromatic sulphonic acids and aromatic aminohydroxy compounds, of the formula Ih.sub.2 n--a--o--so.sub.2 --b (i)comprising reacting an aromatic aminohydroxy compound of the formula IIh.sub.2 n--a--oh (ii)having a pK.sub.a value of from 8.5 to 10.1, with a sulphochloride of the formula IIIcl--SO.sub.2 --B (III)whereinA is phenylene, substituted phenylene, naphthylene or substituted naphthylene,B is phenyl, substituted phenyl, naphthyl or substituted naphthyl, and both A and B are free from --COOH and --SO.sub.3 H substituents;The reaction taking place in a reaction medium consisting essentially of water and a water-immiscible organic solvent for the sulphochloride,At a temperature of from 0.degree. to 95.degree. C., at a pH which is determined from and associated with the pK.sub.a value of said aromatic aminohydroxy compound of formula II by the equationpK.sub.a -pH=0.5 to -1.5, and in the presence of a phase transfer catalyst.
Abstract:
Triphendioxazine compounds corresponding to the formula ##STR1## which are suitable as fiber-reactive dyestuffs for dyeing and printing material, in particular fiber material, containing hydroxy and/or carboxamide groups, such as wool and synthetic polyamide fibers, and especially cellulose fibers, such as cotton, are described. In formula (1), M is hydrogen or an alkali metal and Z is a radical of the formula (2) ##STR2## in which R is hydrogen, sulfo, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, nitro or cyano, W is alkylene having 3 to 6 carbon atoms and the group --SO.sub.2 --Y is a fiber-reactive group of the vinyl sulfone series.
Abstract:
The invention relates to new 2,4-diaminophenyl tetrahydrofurfuryl ethers of the general formula VIII and to their salts with inorganic or organic acids ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, each represent a hydrogen atom, a (C.sub.1 -C.sub.4)alkyl group, hydroxy(C.sub.2 -C.sub.4)alkyl group, dihydroxy(C.sub.3 -C.sub.4)alkyl group, halogeno(C.sub.2 -C.sub.4)alkyl group, amino(C.sub.2 -C.sub.4)alkyl group or an amino(C.sub.2 -C.sub.4)alkyl group which is substituted once or twice by methyl, ethyl or hydroxyethyl radicals on the nitrogen, the carbon chain having a straight or branched arrangement, and it being a proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a hydrogen atom, to processes for their preparation, and to aqueous tinting compositions for keratin fibres such as fur and human hair, containing at least one coupler and at least one developing component together with customary additives and auxiliaries, the coupler corresponding to the general formula VIII or to the acid salts of these compounds.
Abstract:
Azo dyestuff of the formula ##STR1## wherein X is secondary amino or tertiary amino moiety, useful for dyeing and printing hydrophobic fiber materials to produce a deep orange color having excellent fastness properties and also useful for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings.
Abstract:
In the process for production of resist effects on textile materials of mixed fibers of polyester and cellulose comprising impregnating the materials with a dye liquor containing disperse dyestuffs and reactive dyestuffs which react with the resisting agents, drying or partially drying the padded materials and subsequently printing a resist paste on the material, and heat-treating the materials the improvement comprises the dischargeable disperse dyestuffs being of a class of dyestuffs of which an exemplary species is ##STR1## one of the tautomeric forms of a class of dyestuffs of which an exemplary species is ##STR2## or disperse dyestuffs which are free from groups conferring solubility in water and which contain at least two carboxylic acid ester moieties.
Abstract:
A .beta.,.beta.,.beta.-trihalo-.alpha.-hydroxyethyl (e.g. --CHOH--CCl.sub.3) group is introduced into a 2,6-dihydroxy pyridine. The 3-formyl-4-methyl-2,6-dihydroxy pyridine produced by splitting off haloform from the trihalohydroxyethyl product, is a desirable intermediate for the making of dyes and other products, and the alkali metal or alkaline earth metal salts of the formyl compound are more stable forms of this intermediate.