2494-88-4Relevant articles and documents
Preparation method of meta-ester and meta-ester (by machine translation)
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, (2020/06/16)
The molar ratio of the reduction product, the ethylene oxide and the sodium phosphate is 7.4 - 7.7; the molar ratio of the reduction product, the ethylene oxide and the sodium phosphate ranges from 0.68 - 0.685: (0.54 - 0.58): 7 - 7.5; the molar ratio Pd / C catalyst in each process link is controlled to 1; the product quality is improved; the environmental pollutants are reduced; and the method has the advantages of environmental protection and environmental protection effects and is obtained by esterification reaction and synthesis of the intermediate ester and Pd / C at PH ranges of (0.52 - 0.63): (0.00.12) 0.0012; and the method comprises the following steps of reducing the product, reducing environmental pollutants and 0.45 - 0.46 reducing environmental pollutants by adding sodium chloride and a Pd/C catalyst to the condensation product after the reaction is complete. (by machine translation)
Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same
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, (2008/06/13)
An asymmetric dioxazine compound represented by the following formula (I) in the free acid form: STR1 wherein A1 and A2 independently of one another are each sulfo, halo, alkyl or alkoxy, X1 and X2 independently of one another are each hydrogen, halo, alkyl, alkoxy or phenoxy, R1 is hydrogen or unsubstituted or substituted alkyl, R2 and R3 independently of one another are each hydrogen, alkyl, alkoxy, halo or unsubstituted or substituted amino, Z is a fiber-reactive group, m and n independently of one another are each 0 or 1, provided that mn, and L is 1 or 2. This compound is suitable for dyeing and printing cellulose fiber, natural and synthetic polyamide fibers, polyurethane fiber, leather and the like and mixed yarns thereof, to obtain dyed or printed products of a color fast to light, wetness and chlorine with superior build-up and level dyeing properties.
Monazo compounds having a triozinyl bridging group and two vinylsulfone type fiber reactive groups
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, (2008/06/13)
A monoazo compound of the following formula, STR1 wherein A is phenyl or naphthyl, B1 and B2 are each phenylene or naphthylene, R1 is hydrogen, halogeno, alkyl, alkoxy, ureido or acylamino, R2 is hydrogen or takes together with R1 to form benzene, R3 is hydrogen, alkyl, alkoxy or sulfo, R4 and R5 are each hydrogen or alkyl, and Y1 and Y2 are each vinyl, sulfatoethyl or the like, which is useful for dyeing hydroxyl group-containing and amide-containing fiber materials to obtain dyed products of excellent fastness properties with excellent build-up property and reproducibility of dyeing irrespective of changes in dyeing temperatures, bath ratio or salt concentration in some degree.
