http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-935385-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9799ffcda2dbb45041a5ab0fd08dd5fe |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-102 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-10 |
| filingDate | 1960-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1963-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-935385-A |
| titleOfInvention | Improvements in sensitized photographic silver halide emulsions |
| abstract | Anhydro-1-(4-sulphobutyl) quinaldinium hydroxide is prepared by heating quanaldine and 1,4-butane-sultone at 140-150 DEG C. Anhydro- 4-phenylmercapto- 1-(4-sulphobutyl)-pyridinium hydroxide is prepared by heating 4-phenylmercapto-pyridine and 1,4-butane-sultone. 4-Phenylmercapto-pyridinium salts are obtained by heating 4-phenylmercapto-pyridine with 2-bromo-ethanol, 3-bromo-propanol, ethyl bromoacetate, b -bromophenetole or a -bromotoluene. 1,8-Ethylene- 2-methylmercapto-quinolinium p-toluene sulphonate is obtained by heating 1,8-ethylene-2-thio-quinoline with methyl p-toluene sulphonate. Specifications 385,267, 408,571, 450,958, 581,772 and U.S.A. Specification 2,202,827 are referred to.ALSO:Anhydro - 11 - ethyl - 1 - (4 - sulphobutyl) - 2,41-cyanine hydroxide is prepared from 1-ethyl-4-phenyl-mercapto-quinolinium p-toluene sulphonate and anhydro-1-(4-sulphobutyl) quinaldinium hydroxide. 1-ethyl-11-isopropyl-2,41-cyanine perchlorate is prepared from 1-ethyl-2-iodo-quinolinium iodide and 1-isopropyl-lepidinium iodide followed by conversion to the perchlorate. The following dyes are prepared in a similar manner to the above; 11-ethyl-1,3,3-trimethylindo-41-cyanine iodide,1,11-diethyl-5,6-benzo-cyanine iodide and 1,8-ethylene-iodide. Simple merocyanine dyes are obtained by condensing 3-ethyl-rhodanine with 1-(b -hydroxyethyl)-4-phenylmercapto-pyridinium bromide and the corresponding 1-(g -hydroxypropyl), 1-car bethoxy-methyl, 1-(b -phenoxyethyl) or 1-compounds. 3-ethyl-5-(4-pyridylidene)-rhodanine is prepared from 3-ethyl-rhodanine and 4-phenylmercapto-pyridine. 3-ethyl-5-[1-(4-sulphobutyl)-4 pyridylidene]-rhodanine is obtained as its sodium salt by refluxing 3-ethyl-rhodanine and anhydro-4-phenylmercapto-1-(4-sulphobutyl)pyridinium hydroxide in dry pyridine and treating the dye formed with aqueous sodium iodide. 3-(1-ethyl-4-pyridylidene)-5-methyl-2-thiophenone is obtained from 1-ethyl-4- phenylmercaptopyridinium iodide and 5-methyl-2-thiophenone. Specifications 385,267, 408,571, 450,958, 581,772 and U.S.A. Specification 2,202,827 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6403276-B1 |
| priorityDate | 1959-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.