摘要:
Monoazo dyestuffs of the formula ##STR1## wherein R.sub.1 represents an aromatic radical, an aliphatic radical with 1-4 C atoms or a dialkylamino radical, in which the alkyl groups contain 1-C atoms, R.sub.2 represents hydrogen, halogen, alkyl with 1-C atoms, alkoxy with 1-4 C atoms or trifluoromethyl, R.sub.3 represents hydrogen, halogen, alkyl with 1-4 C atoms, alkoxy with 1-4 C atoms or trifluoromethyl and K represents the radical of a coupling component K-H of the formulae (II), (III) and (IV) ##STR2## wherein R.sub.4 represents alkyl with 1-4 C atoms or aryl,R.sub.5 represents hydrogen or unsubstituted alkyl with 1-4 C atoms,R.sub.6 represents hydrogen, nitrile, halogen, alkyl with 1-4 C atoms or alkoxy with 1-4 C atoms,R.sub.7 represents hydrogen, alkyl with 1-4 C atoms, aryl, a carboxylic acid ester group or a carboxylic acid amide group,R.sub.8 represents hydrogen, alkyl, cycloalkyl, aryl or the radical of a heterocyclic compound,R.sub.9 represents hydrogen, halogen, alkyl with 1-4 C atoms, alkoxy with 1-4 C atoms or acylamino,R.sub.10 represents hydrogen, halogen, alkyl with 1-4 C atoms, alkoxy with 1-4 C atoms or aryloxy,R.sub.11 represents hydrogen or alkyl,R.sub.12 represents hydrogen or alkyl and m represents 0 or 1,are suitable for the dyeing of synthetic fibre materials, especially those from polyamides. Level yellow, red and ruby shades are obtained with good dyeing yield and fastness.
摘要:
Polyester fibres are dyed in yellow and orange-red color shades with good fastness to light and wet processing when dyestuffs of the formula ##STR1## wherein K denotes the radical of a 5-amino-pyrazole coupling component which couples in the 4-position,R denotes an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical and the ring A can contain further non-ionic substitutents customary in dyestuff chemistry, are used.
摘要:
The invention relates to the transfer printing hydrophobic fibre materials using paper supports which are printed with azo dyestuffs of the formula ##STR1## wherein X.sub.1 and X.sub.2 represent hydrogen or alkyl or cycloalkyl radicals andn represents 1-3, and wherein the benzene ring A can contain non-ionic substituents and the benzene ring B can contain customary non-polar substituents.
摘要:
Dyestuffs of the formula ##SPC1##In whichR.sub.1 represents an aromatic radical, an aliphatic radical with 1-4 C atoms or a dialkylamino radical in which the alkyl groups contain 1-4 C atoms,R.sub.2 represents chlorine, bromine, an alkoxy group or an alkyl group,R.sub.3 and R.sub.4 represent hydrogen, chlorine, bromine, an alkoxy group or an alkyl group,R.sub.5 represents hydrogen, chlorine, bromine, fluorine, a phenyl group, an alkyl group with 1-4 C atoms or an alkoxy group with 1-4 C atoms,R.sub.6 represents hydrogen, an alkyl group with 1-4 C atoms or an alkoxy group with 1-4 C atoms,R.sub.7 represents an arylsulphonyl radical,B represents a 1,4-phenylene, a 1,4-naphthylene or a tetrahydro-1,4-naphthylene radical andm represents a number from 0 to 2,Are suitable for dyeing synthetic fibre materials, especially polyamide fibre materials.
摘要:
A method for detecting hydrogen peroxide wherein a sample is contacted with a peroxidase or a peroxidatively-active substance and a redox indicator of the following ##STR1## in which A and D independently of one another represent phenyl, pyridyl or imidazolyl,G represents O, CH.sub.2 or S,m represents the number zero or one, andX represents O, ##STR2## or --NR.sup.1 --NR.sup.2 -- R.sup.1 and R.sup.2, independently of one another, denote hydrogen, alkyl, cycloalkyl, aryl or aralkyl, or --NR.sup.1 R.sup.2 together represent a pyrrolidine, pyrazoline, piperidine, piperazine or morpholine radical andT denotes hydrogen, hydroxyl, alkyl, aryl, alkoxy, phenoxy, SO.sub.3 H, --COOH or ##STR3## whereby a color change is brought out if hydrogen peroxide is present.
摘要:
The present invention relates to new chromogenic amino acid esters and peptide esters of hydroxyisoquinolines and hydroxyquinolines, processes for their preparation and the use of the new esters as substrates for the analytical detection of esterolytic and/or proteolytic enzymes, for example in body fluids, the esters being incorporated into test agents, in particular test strips, in a suitable manner. The new esters are particularly used for the detection of leukocytes, in particular in urine.
摘要:
4-Alkyl-2-trifluoromethylanilines, in particular the 4-isopropyl derivative, are starting materials for preparing valuable azo dyestuffs. While the nonionic dyestuff types can preferably be used in transfer printing synthetic hydrophobic fibre materials, the sulpho-containing dyestuffs--in particular those based on "gamma acid"--are suitable for dyeing polyamides.
摘要:
Metal complexes, particularly copper and nickel complexes of azo dyes corresponding to general formula (I) are suitable as color dyes for the production of color images by the dye diffusion transfer process. The dyes are (in non-metallized form), in the form of so-called "dye-releasers", bound to a redox-active carrier radical provided with a ballast group, which dye-releasers are associated to a light-sensitive silver halide emulsion layer. During development, the metallizable dyes are image-wise released and are converted, after diffusion into a light-receiving layer, into the corresponding metal complexes ##STR1## wherein E represents an electron acceptor radical; andK represents the radical of an azo coupler component, derived from an open-chain or closed ring ketomethylene compound, a cyclic enamine compound or a phenolic compound.
摘要:
Dyes corresponding to general formula (I) are released imagewise from corresponding dye-releasers in the dye diffusion transfer process. They react with nickel ions to form lightfast, cyan dye-metal complexes having advantageous spectral properties: ##STR1## wherein Q represents the group required for completing an optionally substituted phenyl or naphthyl group;X represents --S--, --SO.sub.2 --, --SO.sub.2 --NR.degree.-- or --SO.sub.2 --O--;R.degree. represents H or alkyl; andR.sup.1 represents an aliphatic, araliphatic or a carbocyclic or heterocyclic aromatic group or, when X represents --SO.sub.2 --NR.degree.--, R.sup.1 represents hydrogen.
摘要翻译:对应于通式(I)的染料在染料扩散转移过程中从相应的染料释放剂成像释放。 它们与镍离子反应形成具有优异光谱性质的耐光青色染料 - 金属络合物:其中Q表示完成任选取代的苯基或萘基所需的基团; X表示-S - , - SO 2 - , - SO 2 -NR 6 - 或-SO 2 -O-; R DEG表示H或烷基; 并且R 1表示脂族,芳脂族或碳环或杂环芳基,或当X表示-SO 2 -NR D - 时,R 1表示氢。