http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-749114-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04650c4315071ee8af7d26e3441a53b1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-26 |
| filingDate | 1953-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1956-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-749114-A |
| titleOfInvention | Dyestuffs of the anthraquinone series and their preparation |
| abstract | Dyes are made by condensing a hydroxysubstituted polynitroanthraquinone with an organic primary amine by reacting the anthraquinone compound and the organic primary amine together in solution in an organic solvent for said compounds at 100 DEG -145 DEG C., said anthraquinone compound being free from groups (other than the nitro groups) which react with the amine under the reaction conditions. The condensation may be effected in an atmosphere free from oxygen, and the organic solvent may be ethylene glycol monomethyl ether or the acetate thereof, ethyl lactate, butyl alcohol, toluene, and ethylene glycol monoethyl ether. The products dye cellulose acetate, propionate, butyrate, acetate - propionate, acetate - butyrate, and ethyl - and benzyl cellulose. The amine may be employed in excess. In examples 4. 8 - dinitroanthrarufin is reacted in ethylene glycol monomethyl ether with (1) aniline, (2) p- -aminoacetophenone (3) m - aminobenzyl alcohol, (4) m - anisidine, (5) m - aminophenol, (6) m - aminoacetanilide, and (7) m - aminobenzamide. Also in examples, mixtures of 4.8 dinitro - anthrarufin and 4.5 - dinitrochrysazin are reacted with (8) m - aminophenyl - methyl carbinol, and (9) a mixture of m - amino - phenyl methyl carbinol and b - (p-amino-phenyl) - ethanol. Other amines specified as reactants are toluidine, 2. 6 - dimethylaniline, aminoethyl benzene, aminocresol, sulphanilamide, aminobenzoic acid and esters thereof, phenetidene, 2. 5-dimethoxy-aniline, phenylene diamine, naphthylamine, 6-amino - 1, 3 - benzodioxan, methylamine, propylamine, butylamine, ethanolamine, butanolamine 3-amino -4- heptanol, tris - (hydroxymethyl) - aminomethane, cyclohexylamine, benzylamine, and amines of the formula:- <FORM:0749114/IV(c)/1> where X is -(CnH2n) OR (n being 1-5, and R being hydrogen, alkyl, hydroxyalkyl, hydroxyalkoxyalkyl) and Y is hydrogen alkyl, alkoxy, hydroxy, halogen, carboxy, carbethoxy or other carbalkoxy, cyano, amino, alkylamino, hydroxyalkyl, hydroxyalkoxy, or hydroxyalkoxyalkyl. Examples of this last category are 2-methyl-5-amino-benzyl alcohol, 4-methyl -3- aminobenzyl alcohol, methoxy and methylol aminobenzyl alcohols, 2-aminobenzyl-oxyethanol, p-aminophenylethyl alcohol, m-and p-aminophenoxyethanol. Other anthraquinone compounds specified are 4. 8-dinitro-anthrachrysone, 1. 6-dihydroxy-4. 5-dinitro-anthraquinone 1. 7-dihydroxy-4. 5-dinitro - anthraquinone. Specifications 646,459, 716,333, 716,564, 716,937 and 722,367 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3390946-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3520648-A |
| priorityDate | 1952-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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