http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-870633-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/G03C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-20 |
| filingDate | 1958-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_923bf6b5f705525fa33090d48afdec86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1147d97fdc06a06563b5209ef2a87bbf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d24cdf456027995e392c541efbfb667 |
| publicationDate | 1961-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-870633-A |
| titleOfInvention | Pentamethincyanines |
| abstract | 2-Aminopyrimidine is quaternized by refluxing it with methyl iodide or dimethyl sulphate in dry benzene. 2-Methylthiopyrimidine is quaternized by refluxing it with dry methyl iodide.ALSO:Dicarbocyanine dyes are prepared by reacting, in the presence of an acid binding agent, one molecular equivalent of a pyrimidine quaternary salt of the formula:- <FORM:0870633/IV(c)/1> with two molecular equivalents of a quaternary salt of the formula:- <FORM:0870633/IV(c)/2> wherein R1 is hydrogen, or an alkyl, aryl or aralkyl group, R2 is an alkyl, aryl or aralkyl group, R3 is an alkyl, aryl, aralkyl, hydroxyalkyl or carboxyalkyl group, A is hydrogen or a monovalent substituent, M is -N= or -CH=, X and Y are anions, D completes a 5- or 6-membered ring and n is 0 or 1. The pyrimidine ring splits to give pentamethine dyes which may have a substituent (R1) on the central methine group. Examples are given of the reaction of quaternary salts of pyrimidine, 2-methylthio pyrimidine, 2-methylthio-5-methyl pyrimidine, 2-methylthio-5-phenyl pyrimidine, 2-benzylthio pyrimidine, 2-amino pyrimidine, 2-methylamino pyrimidine, 2-methoxy pyrimidine, 2-methyl pyrimidine, 2-methyl-5-n-butyl pyrimidine or 2-phenyl pyrimidine with cyclammonium salts of benthiazole, benzselenazole, naphthathiazole, quinoline, indolenine, pyrimidine, 1; 3; 4-thiadiazole, thiazole or thiazoline having a reactive methyl group. Example 26 shows the production of an anhydrohydroxide from 2-methyl-5-chlorobenzthiazole b -carboxyetho-chloride. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113773666-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1355645-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1355645-A2 |
| priorityDate | 1958-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.