http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2025631-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-32 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B3-00 |
| filingDate | 1990-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bf3f7afe1947ed0f054e73bcc81ea95 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17ab7c186172cc1519052985e3f0515e |
| publicationDate | 1991-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2025631-A1 |
| titleOfInvention | Process for the preparation of benzotriazoles |
| abstract | A-17750/+/CGM 358 Process for the preparation of benzotriazoles Abstract of the disclosure 2-(2-Hydroxyphenyl)-2H-benzotriazoles of the formula I, in which R is hydrogen, C1-C12alkyl or C1-C4alkoxy, R1 is hydrogen, C1-C12alkyl,C5-C6cycloalkyl, phenyl or phenyl-C1-C4alkyl and R2 is C1-C12alkyl, C5-C6cycloalkyl, phenyl, phenyl-C1-C4alkyl or a group -CnH2n-COOR3, in which n is 0 to 4 and R3 is hydrogen or C1-C12alkyl, can be prepared particularly advantageously by catalytic hydrogenation of a suitable o-nitroazo compound in the presence of a Pt, Pd, Pt/Pd or Rh hydrogenation catalyst and an alkylenediamine or an acyclic or cyclic polyalkylene polyamine in a halogenated or nonhalogenated aromatic hydrocarbon as solvent. |
| priorityDate | 1989-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 84.