| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a526baeaf0a6e90f4a91d4dbfd619756 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C249-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-24 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C249-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C217-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B43-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-40 |
| filingDate |
1990-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b926d6a863d14d294f35b0db7298f96 |
| publicationDate |
1990-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4968843-A |
| titleOfInvention |
Preparation of a N-substituted phenylenediamine |
| abstract |
The present invention relates to a process for the preparation of a N-substituted phenylenediamine of the formula: ##STR1## comprising reacting N-phenylquinoneimine of the formula: ##STR2## with a primary amine of the formula: n n R--NH.sub.2 (III), n n wherein the molar ratio of II to III in the reaction mixture ranges from about 1:1 to 1:10; and wherein R is selected from the group of radicals consisting of alkyls having 1 to 20 carbon atoms, cycloalkyls having 6 to 8 carbon atoms and radicals of the structural formula: ##STR3## wherein R 2 may be the same or different and is independently selected from the group of radicals consisting of hydrogen and an alkyl having 1 carbon atom, R 3 is selected from the group of radicals consisting of an alkyl having 1 to 12 carbon atoms and n is an integer of from 0 to 6. The present process is characterized by its excellent yields of high purity N-substituted phenylenediamines. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5053540-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5189218-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5371289-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6043384-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6376728-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6187937-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109942456-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6072061-A |
| priorityDate |
1990-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |