http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20140064755-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2c21f8fa8b363c96308f0b16ce3d8e4c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-48 |
| filingDate | 2014-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d582f9ab6c54d6102dc49e3534f2870f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa941b790302f242897a31779657be48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ac0ac9462c893662c4888e44511af81 |
| publicationDate | 2014-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20140064755-A |
| titleOfInvention | Preparation of 3-amino-6-chlorotoluene-4-sulfonic acid |
| abstract | The present invention, (a) meta-toluidine (m -toluidine) chlorine, CuCl 2 '2H 2 O and aqueous solution of hydrochloric acid containing mixture with a chlorination sikidoe, the meta-toluidine and the CuCl 2' 2H 2 O 1: 1 Toluidine chloride isomer and the content of p-toluidine chloride isomer is 99.5 wt% or more based on the total amount of the intermediate, thereby producing a toluidine chloride intermediate having a p-toluidine chloride isomer content of 99.5 wt% or more based on the total amount of the intermediate ; And (b) sulfuric acid as a sulfonating agent, 1,2-dichlorobenzene as a solvent, the intermediate prepared in step (a) and sulfuric acid in a molar ratio of 1: 0.99 to 1: 1.01, Sulfonated 3-amino-6-chlorotoluene-4-sulfonic acid in the presence of an acid catalyst. |
| priorityDate | 2014-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.