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A supramolecularly tunable chiral diphosphine ligand: application to Rh and Ir-catalyzed enantioselective hydrogenation† †Electronic supplementary information (ESI) available: Experimental details and characterization data for the prepared compounds. See DOI: 10.1039/c6sc00589f
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Xi‐ Chang Chen, Chiao En Fang, Qiang Yang, Li-Yao Lu, Ying-Bo Xie, Lin-Jie Wu, Jing Long Li, Shijun Fang, Wenjun |
| Copyright Year | 2016 |
| Abstract | A supramolecularly tunable chiral bisphosphine ligand bearing two pyridyl-containing crown ethers, ( ) or (+)-Xyl-P16C6-Phos, was fabricated and utilized in the Rh-catalyzed asymmetric hydrogenation of a-dehydroamino acid esters and Ir-catalyzed asymmetric hydrogenation of quinolines in high yields with excellent enantioselectivities (90–99% ee). Up to a 22% enhancement in enantioselectivity was achieved by the addition of certain amounts of alkali ions (Li, Na or K), which could be selectively recognized and effectively complexed by the crown ethers on the chiral Xyl-P16C6-Phos. |
| Starting Page | 4594 |
| Ending Page | 4599 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/chin.201645038 |
| PubMed reference number | 30155106 |
| Volume Number | 7 |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/articlepdf/2016/sc/c6sc00589f |
| Alternate Webpage(s) | https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a2/73/SC-007-C6SC00589F.PMC6016442.pdf |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/articlepdf/2016/sc/c6sc00589f?page=search |
| Journal | Chemical Science |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
