http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108069979-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_215fd62f148bc5aab2bfc8e46ecd6126 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-08 |
| filingDate | 2018-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac61b6b29fe5648a55dbee453a9cc4c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cd0242f0be9251592eae08fd8509478 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1147d94aa92f449feca5a5a5c9a2f167 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d74938a553a0cc90fbd7350cbe5e0ee2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91e9deddf7dd7ba00cf777fb1eb3353a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_103d50b6971c435e530ca6d14adee8e7 |
| publicationDate | 2018-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108069979-A |
| titleOfInvention | A kind of preparation method of bicyclic alkene tetracarboxylic dianhydride |
| abstract | The invention discloses a kind of preparation methods of bicyclic alkene tetracarboxylic dianhydride, and the invention belongs to fine chemicals preparation method fields.Its main technical schemes is using cheap phthalic acid as starting material, and 3,5 cyclopentadiene, 1,2 dicarboxylic acids is generated by electroreduction；Again with 3,5 cyclopentadiene, 1,2 dicarboxylic acids and maleic acid anhydride reactant, acetic anhydride or propionic andydride do solvent and dehydrating agent, bicyclic alkene tetracarboxylic dianhydride are generated by Isosorbide-5-Nitrae addition, dehydration closed-loop reaction.This programme has many advantages, such as that manufacture is at low cost, atom utilization is high, high income, reaction condition are mild, environmental protection. |
| priorityDate | 2018-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.