http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-485609-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-18 |
| filingDate | 1936-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1938-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-485609-A |
| titleOfInvention | Improvements in photographic sensitive emulsions |
| abstract | 2 : 31 - Dimethyl - 8 - ethylthiathiazolino-carbocyanine iodide is prepared by condensation of 2 - methyl - 1 - propionylmethylenebenzthiazoline with 2-methylthiazoline methyl-p-toluenesulphonate, followed by conversion to the iodide. Similar condensations using (1) 1 - acetylmethylene - 2 - ethylbenzselenazoline and 2 - methylthiazoline ethyl p-toluenesulphonate, (2) 2 - acetylmethylene-1-ethyl - b - naphthathiazoline and 2 - methylthiazoline ethyl p-toluenesulphonate, (3) 1-methyl - 2 - propionyl - methylene - b - naphthathiazoline and 2 - methylthiazoline methyl p-toluenesulphonate, and (4) 1-acetylmethylene-4 - chloro - 2 - ethylbenzthiazoline and 2-methylthiazoline methyl p-toluenesulphonate, followed in each case by conversion to the corresponding iodide, give (1) 2 : 31-diethyl-8 - methylselenathiazolino - carbocyanine iodide, (2) 2 : 31 - diethyl - 8 - methyl - 3 : 4-benzthiathiazolinocarbocyanine iodide, (3) 2 : 31 - diethyl - 8 - methyl - 3 : 4 - benzthiathiazolinocarbocyanine iodide, and (4) 4-chloro-2 - ethyl - 21 : 8 - dimethylthiathiazolinocarbocyanine iodide. Propionic and acetic anhydrides are used as condensing agents. 1 - Acetylmethylene - 4 - chloro - 2 - ethylbenzthiazoline is prepared by the reaction of 4 - chloro - 1 - methylbenzthiazoline ethyl p-toluene-sulphonate with acetylchloride. 2 - Methylthiazoline methyl- and ethyl-p-toluenesulphonates are prepared by heating 2-methylthiazoline with methyl- or ethyl-p-toluenesulphonate. Specifications 412,309, 466,097, and 466,246 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3189456-A |
| priorityDate | 1936-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.