| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C301-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-42 |
| filingDate |
1976-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80fbc13dccd53cda7a093ed5a4039c7e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_267c2616b3bd99987a1d5c501bb9c756 |
| publicationDate |
1977-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4038328-A |
| titleOfInvention |
Process for preparing 2-nitro-4,6-dichloro-5-methylphenol |
| abstract |
2-NITRO-4,6-DICHLORO-5-METHYLPHENOL IS PREPARED BY THE SULFONATION OF 4-CHLORO-5-METHYLPHENOL TO FORM 2-SULFO-4-CHLORO-5-METHYLPHENOL WHICH IS CHLORINATED TO 2-SULFO-4,6-DICHLORO-5-METHYLPHENOL WHICH IS IN TURN REACTED WITH NITRIC ACID TO FORM THE DESIRED PRODUCT. The sulfonation is carried out with concentrated sulfuric acid at elevated temperatures to form 2-sulfo-4-chloro-5-methylphenol. Thereafter the reaction mixture is diluted with water to a sulfuric acid content of 20-30%. The resulting 2-sulfo-4-chloro-5-methylphenol is chlorinated with chlorine at elevated temperature and normal or elevated pressures to form 2-sulfo-4,6-dichloro-5-methylphenol which is then reacted with nitric acid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5012015-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5292966-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5371291-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104892468-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4778629-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4960955-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4943666-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4670608-A |
| priorityDate |
1975-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |