http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113976113-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_32d48279c090f590b82ea531a20ddd8d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0207 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J7-0045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-62 |
| filingDate | 2021-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b41ffd6796c44ecb52496692633f7347 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b5d1eb1614b2945c1f00970605b9e2f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96ce6e6afaf09065c34db8b39cde2401 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86ad93d77b21d25b5e30ff8e8a95342b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba919bc00ce8becaa70d8d2eb68aed23 |
| publicationDate | 2022-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113976113-A |
| titleOfInvention | A kind of catalyst for megestrol acetate synthesis, its preparation method and application |
| abstract | The invention discloses a catalyst for the synthesis of megestrol acetate, its preparation method and application. After the activated carbon is stirred in the ammonium oxalate solution, filtered and washed with water, the ammonium oxalate treated activated carbon is obtained; step 3, the ammonium oxalate treated activated carbon is placed in the gallium salt solution and stirred, and filtered to obtain the gallium modified activated carbon; step 4, the gallium modified activated carbon is obtained; The activated carbon is placed in the palladium chloride solution, stirred, and the stirring process controls the pH of the system to be 7 to 9, filtered, and washed to obtain a catalyst precursor; step 5, reduce the catalyst precursor in step 4 to obtain megestrol acetate synthesis. catalyst. The catalyst of the invention has a yield of more than 98.0% in the reaction of synthesizing megestrol acetate from α-hydroxy-6-methylenepregna-4-ene-3,20-dione, and has high reactivity and activity. |
| priorityDate | 2021-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.