| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b94d2715cda37c1f23e48f9f4f23422 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C205-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01S3-213 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01S3-213
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 |
| filingDate |
1975-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bacbf98480509e08e226142371b7dfda
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98c7662f6efd7059466d411831bed183 |
| publicationDate |
1978-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4079082-A |
| titleOfInvention |
Lasing dyes derived from ter-and quaterphenyl |
| abstract |
Methods for preparing ##STR1## wherein n is 3 or 4 and R is H, CH 3 or C 2 H 5 . The methods involve forming ##STR2## by reacting p-terphenyl or quaterphenyl with acetic acid and fuming nitric acid, forming ##STR3## by refluxing the dinitro derivative with stannous chloride, hydorchloric acid and acetic acid and forming the dialkylamino derivative by refluxing the diamino derivatives with a suitable trialkyl phosphate. Also, ##STR4## derivatives may be prepared by refluxing the diamino derivatives with sodium nitrite and hydrochloric acid to form ##STR5## AND REACTING THIS INTERMEDIATE WITH A MIXTURE OF ACETIC ACID AND EITHER WATER OR ALCOHOL. The compounds are useful as lasing dyes. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8197722-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4876029-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3408028-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0061026-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0356091-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5037578-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5041238-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0356091-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002185634-A1 |
| priorityDate |
1975-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |