http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103524557-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9de52bba13e16028dffa8775e3f3f28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38b04dac5e5700071e574cb587f8e099 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-655 |
| filingDate | 2009-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d45a26611ed1217ae4d71bbcf9285e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a82de930b8008bcf5cb00a742e12220c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb0d60b696d2715cacfce1205ca40ec6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e9da82da41035f34b3bab3b03d882c1 |
| publicationDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103524557-A |
| titleOfInvention | 1, 1'-biphenyl-like axial chiral 2,2'-bisphosphine ligand connected at 5, 5' position and preparation method thereof |
| abstract | The invention relates to a 1,1'-biphenyl-like axial chiral 2,2'-bisphosphine ligand connected at the 5,5' position and a preparation method thereof in the technical field of chemical industry. Compound I with axes in (R) and (S) configurations or optically pure compounds II and III with axes in both (R) and (S) configurations. Preparation method: substituted 4-methoxyphenol is converted into compound IV in an organic solution; compound IV is converted into compound V; compound V is converted into compound VI by reacting with di(R 1 ) phosphine hydrogen; compound VI is converted into compound VII; Compound Ⅷ was reacted with boron tribromide to prepare compound Ⅷ; compound Ⅷ was reacted with dihalogenated hydrocarbon to prepare 5,5'-linked compound Ⅸ with mixed (R) and (S) configurations, using chiral HPLC Compounds X and XI with (R) and (S) single configurations were obtained by resolution; compound I or compounds II and III were obtained. The invention can be complexed with divalent metal palladium to form a catalyst, and can obtain high catalytic performance and enantioselectivity. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105481684-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105481684-A |
| priorityDate | 2009-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.