http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1319763-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/G03C1-8155 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D277-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-64 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-815 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-333 |
| filingDate | 1969-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1319763-A |
| titleOfInvention | Fluorescent compounds |
| abstract | 1319763 Biphenyl and quaterphenyl derivatives and intermediates KODAK Ltd 9 Dec 1970 [9 Sept 1969] 44547/69 Heading C2C [Also in Division G2] 4,4<SP>1</SP>-Di-(5,7-di-t-pentylbenzoxazol 2-yl)biphenyl is prepared as follows: (a) 2,4-di-t-pentylphenol is nitrated with nitric acid to give 2-nitro-4,6- di-t-pentyl phenol which is treated in the presence of aqueous hydroxide with sodium dithionite to give 2-amino-4,6-di-t-pentylphenol; and (b) the amino compound is treated, in the presence of calcium oxide and o-dichlorobenzene, with 4,4<SP>1</SP>-dichlorocarbonylbiphenyl which is made by hydrolysing 4,4<SP>1</SP>-dicyanobiphenyl to give 4,4<SP>1</SP>-dicarboxybiphenyl and treating this with thionyl chloride and dimethyl formamide. 4,4<SP>111</SP>-Di-(5,7-di-t-pentylbenzoxazol-2-yl)p-quaterphenyl is prepared as follows: (a) 4-carboxy-4<SP>1</SP>- iodobiphenyl is prepared from biphenyl via 4-iodobiphenyl and 4-acetyl-4<SP>1</SP>-iodobiphenyl; (b) 4-carboxy-4<SP>1</SP>-iodobiphenyl is converted to 4-carboxy-4<SP>1</SP>-iodobiphenyl by heating with thionyl chloride; (c) the product of (b) is reacted with 2-amino-4,6-di-t-pentylphenol to give 4- iodo - 4<SP>1</SP> - (5,7 - di - t - pentylbenzoxazol - 2 - yl) biphenyl; and (d) the product of (c) is heated with copper powder to give 4,4<SP>111</SP>-di-(5,7-di-tpentylbenzoxazol - 2 - yl)- p - quaterphenyl. 4,4<SP>1</SP>-Dibenzothiazol-2-yl biphenyl is prepared by reacting 4,4<SP>1</SP>-dichlorocarbonylbiphenol with 2- aminothiophenol. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6368778-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0256537-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0218266-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6465162-B1 |
| priorityDate | 1969-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.