Abstract
Precise chiral recognition was firstly realized in the construction of
diastereomeric biaryl monophosphines by means of the substrate-directed
asymmetric annulation reactions. A series of new chiral-bridged
atropisomeric biphenyl monophosphine ligands with tunable dihedral
angles was accordingly synthesized successfully without a resolution
step being needed. Using these ligands, different kinds of axially
chiral 1,1′-biaryl-2-phosphonates including the first reported quinolyl
biaryl phosphonates were prepared in 42–97% yields with up to 96% ee via palladium-catalyzed asymmetric Suzuki coupling reactions.
Original language | English |
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Pages (from-to) | 1656-1662 |
Number of pages | 7 |
Journal | Advanced Synthesis and Catalysis |
Volume | 359 |
Issue number | 10 |
Early online date | 15 Mar 2017 |
DOIs | |
Publication status | Published - 17 May 2017 |
User-Defined Keywords
- asymmetric catalysis
- diastereoselective synthesis
- heterocyclic biaryls
- monophosphine ligands
- quinoline derivatives
- Suzuki coupling