http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020250920-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_81bf14c62e646d00e874670a6cf810cc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D407-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-89 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-89 |
| filingDate | 2020-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5de337cf2eebaa1a397b587570684416 |
| publicationDate | 2020-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2020250920-A1 |
| titleOfInvention | Method for producing ester group-containing acid dianhydride derivative |
| abstract | The purpose of the present invention is to provide a production method by which an ester group-containing acid dianhydride derivative is efficiently obtained in a short time from a low-cost starting material having few environmental sanitation problems at an industrially applicable reaction temperature, while avoiding impurities that have adverse effects on a semiconductor element; and the present invention provides a method for producing an ester group-containing acid dianhydride derivative represented by general formula (4), said method being characterized by causing a lower alkanoic acid ester of an aromatic diol represented by general formula (1) and a trimellitic acid anhydride represented by formula (3) to react with each other in an organic solvent in the presence of an amine compound. |
| priorityDate | 2019-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 121.