http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003146964-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8592fb6db0462e8981ef38a4a6846d9 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-89 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2001-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05269418f768fdc7d5a8dadf70470a8c |
| publicationDate | 2003-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003146964-A |
| titleOfInvention | Process for producing diaryl sulfone polycarboxylic acids or anhydrides thereof |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing a diaryl sulfone polycarboxylic acid or an anhydride thereof which is a useful material having a wide range of uses. SOLUTION: General formula (1) [In the formula, Ar represents a benzene ring or a naphthalene ring. X Represents a nitro group or a halogen group. n represents an integer of 1 to 3. Sulfide dimerization to obtain diarylthiopolycarboxylic acids or anhydrides thereof by reacting aromatic carboxylic acids, anhydrides or alkyl esters having 1 to 8 carbon atoms thereof with sulfur or sulfides Process and An oxidation step of oxidizing the obtained diarylthiopolycarboxylic acids or their anhydrides with an oxidizing agent, [Wherein, Ar, X and n have the same meanings as in the general formula (1), respectively. The method for producing a diarylsulfone polycarboxylic acid or an anhydride thereof represented by the formula: |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115304579-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4622233-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005132772-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105218418-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105859596-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106518821-A |
| priorityDate | 2001-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 315.