| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-353 |
| filingDate |
2000-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_359510a78fadcdc744024ad2a0c3693a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82dcb450cb4fed4cbf943ff4a1e82517
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ef7a4711f50aca6c31d5273c11bdb1e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_853d6c71c31f49bb5b621ca0fd9c7112 |
| publicationDate |
2004-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1208076-B1 |
| titleOfInvention |
Process for the preparation of alkanoyloxy-benzenesulfonic acids and salts thereof |
| abstract |
Disclosed is a process for the preparation of alkanoate esters of hydroxybenzenesulfonic acids and salts thereof by the steps of (1) contacting or reacting phenol with an alkanoic acid in the presence of trifluoroacetic acid (TFA) and trifluoroacetic anhydride (TFAA) to produce an aryl alkanaoate ester and (2) contacting the reaction mixture of step (1) with a sulfonating agent to convert the aryl alkanoate ester to an alkanaoate ester of hydroxybenzenesulfonic acid. The process provides the economic advantage inherent in using the product of esterification of step (1) without isolation in the sulfonation of step (2). |
| priorityDate |
1999-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |