| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7641d8ec4b289baa8268f4936e0e4635 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0274
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0275
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 |
| filingDate |
2020-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f2b507a1336a2222cd2caf48cb9880b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a2cbb89585ae5608070632e07d1b726
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40dbf2d291e716da699ff003e26b7351
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f34c184827077c7086f01515baa1ad3b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e8d4ea59f0c93c88b3ca9dcf957f436 |
| publicationDate |
2020-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-111790440-A |
| titleOfInvention |
A kind of NHPI catalyst grafted by imide bond and its preparation method and application |
| abstract |
The invention discloses an NHPI catalyst grafted by imide bonds and a preparation method and application thereof. The catalyst comprises a SiO 2 carrier and N-hydroxyphthalimide grafted on the SiO 2 carrier, and N-hydroxyphthalimide is grafted on the SiO 2 carrier. -Hydroxyphthalimide is grafted on the SiO 2 carrier through an imide bond; the preparation method of the catalyst comprises the following steps: (1) using aminopropyltriethoxysilane to modify the surface of the carrier SiO 2 , Obtaining the surface amination carrier SiO 2 -APTES; (2) dissolving the ring-mounted dilinked acid anhydride and the surface amination carrier SiO 2 -APTES in a solvent, and preparing the grafted acid anhydride by imide covalent bond grafting; ( 3) The grafted acid anhydride is subjected to imidization treatment to prepare a grafted NHPI catalyst, which can be used as a recyclable catalyst in the preparation of acetophenone. The catalyst has no loss of active components in the catalytic reaction, good stability, high active site density, good catalytic effect, and realizes the recyclable utilization of the catalyst. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113231103-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113231043-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113231103-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113813992-A |
| priorityDate |
2020-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |