| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-22 |
| filingDate |
1990-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_025e482d44b475eac39022528726b3f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa11fd327e9c5b9062ab8af29a66e2de |
| publicationDate |
1991-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5041631-A |
| titleOfInvention |
Process for the preparation of 2-alkylamino-4-aminobenzenesulfonic acids |
| abstract |
A process for the preparation of 2-alkylamino-4-aminobenzenesulfonic acids by acylation of 2,4-diaminobenzenesulfonic acid followed by alkylation of the resulting 4-acylamino-2-aminobenzenesulfonic acid and, finally, removal of the acyl group by hydrolysis. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100499643-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102516137-A |
| priorityDate |
1989-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |