| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-20 |
| filingDate |
1977-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_025e1a18de7602a8d55c12ec0afaf67c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cdfbf99bbe12171a70661375eae99668 |
| publicationDate |
1980-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4219480-A |
| titleOfInvention |
Process for the production of 2-aryl-2H-benzotriazoles |
| abstract |
A process for the production of 2-aryl-2H-benzotriazoles comprises reducing and cyclizing the corresponding o-nitroazobenzenes with hydrogen at a temperature in the range of about 20 DEG C. to about 100 DEG C. and at a pressure in the range of about 15 psia (1 atmosphere) to about 1000 psia (66 atmospheres) in an alkaline medium at a pH over 10 in the presence of a nickel catalyst, preferably molybdenum-promoted Raney nickel. High yields of pure product are obtained directly with a concomitant reduction of undesired by-product and a reduction in effluent pollution problems. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8402365-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100341859-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6353021-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0057160-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0112120-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0112120-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5276161-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4668235-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006122293-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03048257-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4770667-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4999433-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6225375-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0363318-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5571924-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6059991-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4956406-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5097041-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6740694-B2 |
| priorityDate |
1977-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |