http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-949944-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_315d611c240458b1308de8455144105a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-3212 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D207-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-48 |
| filingDate | 1960-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d2b0c63e99449c608942467b0049593 |
| publicationDate | 1964-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-949944-A |
| titleOfInvention | Amide colour couplers |
| abstract | The invention comprises colour couplers of the formula: <FORM:0949944/C2/1> where A is the trivalent radical: <FORM:0949944/C2/2> D is a direct linkage or the divalent radical: <FORM:0949944/C2/3> in which X is -S- or -CONH-, R is a hydrocarbon group and B is a colour coupler residue such that the compound: <FORM:0949944/C2/4> is a compound which will react with the oxidation products of N, N-diethyl para-phenylene diamine, formed during the development of a silver salt image with that compound, to yield a quinoneimine or azomethine dyestuff. The above compounds are prepared by heating a compound of the formula: <FORM:0949944/C2/5> with a compound of the formula: B-CO-halogen or B-COOM, wherein M represents C1-6 alkyl or phenyl. Compounds of the formula B-CO-halogen or B-COOM are, for example: (1) Those in which B contains a mono- or bicyclic aryl radical, e.g. ethyl benzoylacetate, ethyl 4-methoxybenzoylacetate, ethyl 2-methoxy-benzoylacetate, ethyl 4-N-dimethylaminobenzoyl-acetate and ethyl (2-methyl-2, 3-dihydrobenzofuran -7- ylcarbonyl) - acetate. (2) Those which contain a pyrazolane ring, e.g. 1 - (4-carbethoxyphenyl) -3- acetylamino -5-pyrazolone, 1-phenyl -3- carbethoxy -5- pyrazolone and 1-phenyl -3- (2-carbphenoxybenzoylamino) -5- pyrazolone. (3) Those which contain a phenol or 1-naphthol residue, e.g. phenyl salicylate, phenyl 1-hydroxy -2- naphthoate and phenyl 1-hydroxy-4-chloro-2-naphthoate. It is stated that the addition of the above colour couplers to dilute alkali (e.g. potassium or sodium hydroxide) has the effect of opening the ring structure: <FORM:0949944/C2/6> to provide a free carboxylic group after neutralization with, e.g. acetic acid. 4 - Amino - N - n - dodecylphthalimide, 4 - amino - N - n - octadecylphthalimide 4 - aminophenylsuccin - N - (4 - n - dodecylphenyl) - imide, 4 - amino - N - (4-n-dodecylphenyl)-phthalimide, 4 - (4 - aminobenzoylamino) - N - n - octadecylphthalimide and 4 - aminophenylthiosuccin - N -(4 - n - dodecylphenyl) - imide are prepared by reduction of the corresponding nitro compounds. 4 - Nitro - N - n - dodecylphthalimide and 4 -nitro - N - n - octadecylphthalimide are prepared by reacting 4-nitrophthalic anhydride with n-dodecylamine and n-octadecylamine respectively. 4 - Nitrophenylsuccin - N - (4 - n - dodecylphenyl) - imide, 4 - amino - N - (4 - n - dodecylphenyl) - phthalimide and 4 - nitrophenylthiosuccin - N - (4 - n - dodecylphenyl) - imide are prepared by reacting 4-n-dodecylaniline with 4-nitro-phenylsuccini acid, 4-nitrophthalic acid and 4-nitrophenylthiosuccinic acid respectively. 4 - (4 - Nitrobenzoylamino) - N - n - octadecyl - phthalimide is prepared from 4-nitrobenzoylchloride and 4-amino-N-n-octadecylphthalimide. |
| priorityDate | 1960-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.