http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1710546-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9ae24a2af2264821fa0d8f44105937a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3c3a24bb31c1429a276eac8358861156 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08 |
| filingDate | 1989-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d4258098d3727a0e4576aedf0bb9c5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_799d9719e4b0c7a781b74425298f2c2d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8279dd9ffeaf5f6a2b326d01fb933020 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12ad43ec88984a838c5d9fa38186a4b0 |
| publicationDate | 1992-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1710546-A1 |
| titleOfInvention | Method of producing a mixture of 3- and 4-nitro-o-xylenes with predominant content of 4-nitro-o-xylene |
| abstract | The invention relates to the production of nitroaromatic compounds, in particular the preparation of a mixture of 3- and 4-nitro-o-xylols with a predominant content of 4-nitro-o-xylene, an intermediate product in the production of vitamin Ba herbicides. The goal is to increase the selectivity and simplify the process. It is carried out by nitration of o-xylol with concentrated nitric acid in the presence of a catalyst — alumina coated with copper sulfate at 25-60 ° C in carbon tetrachloride or dichloroethane. These conditions provide a mixture yield of 65% at a ratio of 4-nitro-o-xylene and 3-nitro-o-xylolate2.18. 1 tablessl |
| priorityDate | 1989-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.