http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114632552-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bda73988382fc4c13ee614d87fcec6a1 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-824 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-4205 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-505 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2404 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2457 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2452 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F15-0066 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 |
| filingDate | 2022-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a596b04efdf0ebed10aae145f91eb349 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_643dbbae8a3f801f2324c34f3a718aab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_981d9ae39f9ec32d5ee54f09c177ce69 |
| publicationDate | 2022-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114632552-A |
| titleOfInvention | Buchwald precatalyst and its preparation method and application |
| abstract | The invention relates to the technical field of organic synthesis, in particular to a Buchwald precatalyst and a preparation method and application thereof. The preparation method of the present invention comprises the following steps: mixing the palladium source, the phosphine ligand and the first solvent in a non-reactive gas atmosphere to carry out the first step reaction; after the first step reaction is completed, adding a quaternary biphenyl group-containing quaternary Ammonium salt, carry out the second-step reaction; after the second-step reaction is completed, add the second solvent, separate out the solid, separate the solid-liquid, and retain the solid phase; wherein, the palladium source includes allyl palladium chloride dimer, crotyl chloride One or more of palladium chloride dimer and cinnamyl palladium chloride dimer; the first solvent is toluene and/or xylene; the second solvent is n-hexane and/or diethyl ether. The preparation method has the advantages of simple process, low precious metal loss, high product yield, low solvent residue in the prepared precatalyst finished product, high catalytic activity and accurate measurement. |
| priorityDate | 2022-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 108.