http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5288867-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-22 |
| filingDate | 1993-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_928c6311d2cb92eb170b939de0b4c5a0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_108aa3ee7ba21d09cd54e28372359a5b |
| publicationDate | 1994-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5288867-A |
| titleOfInvention | Process for the preparation of 2-hydroxy-4,6-diaryl-1,3,5-triazines |
| abstract | There is disclosed a process for the preparation of 2-hydroxy-4,6-diaryl-1,3,5-triazines, which comprises reacting the compound of formula ##STR1## wherein R is hydrogen, C 1 -C 4 alkyl or halogen, with urea, using a base selected from the class of the alkali metal hydrides, alkaline earth metal hydrides, or alkali metal amides, alkaline earth metal amides, or of the alkali metal C 1 -C 4 alcoholates in the presence of a polar solvent, to give the final products in a one step process in which the molar ratio of urea to base is 1:2 to 1:3 and the molar ratio of compound of formula (1) to urea is 2:1 to 5:1. n 2-Hydroxy-4,6-diaryl-1,3,5-triazines are prepared in very good yield by the inventive process. The compounds are used as intermediates for the synthesis of UV absorbers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5545836-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010081625-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106083751-A |
| priorityDate | 1992-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.