http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107033342-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0ee33b0e3e7398cf6fc957eeee59d510 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-0213 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-0241 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-337 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-33396 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-3346 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2217 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-343 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-337 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-334 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-747 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-343 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-22 |
| filingDate | 2017-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba5251215d219ba07bee5010a9eef19c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3c30da842fe7f88eb6d93e5872c45df |
| publicationDate | 2017-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107033342-A |
| titleOfInvention | A kind of preparation method of PEG immobilized chiral bisoxazoline ligand |
| abstract | The invention belongs to the technical field of organic synthesis and catalysis, and in particular relates to a preparation method of PEG immobilized chiral bisoxazoline ligands. First, react PEG with methylsulfonyl chloride to obtain OMs-PEG, and then reflux with sodium iodide in acetone to obtain iodo-PEG. PEG was grafted to obtain PEG immobilized chiral bisoxazoline ligands. The invention effectively improves the immobilization rate and stability of the active group; the PEG carrier can be dissolved in the reaction solvent to form a homogeneous reaction system, which is beneficial to the role of the catalyst and the substrate, and exerts the electronic effect of the ligand, and its activity and three-dimensional The selectivity is higher, the catalyst can be easily separated from the reaction system by adding ether after the reaction, and can be reused; the chiral bisoxazoline ligand is cheap and easy to obtain, has wide applicability and high activity; the preparation process of the present invention is simple, The production rate is high, the production cost is low, and there is no pollution to the environment. The catalyst and intermediate products can be separated from solid and liquid by conventional methods. |
| priorityDate | 2017-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.