Journal
Organic Chemistry Frontiers
Volume 2, Issue 10, Pages 1342-1345Publisher
CHINESE CHEMICAL SOC
DOI: 10.1039/c5qo00142k
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A series of P-chiral biaryl phosphonates were efficiently synthesized from diaryl 2-bromo arylphosphonates in high yields (up to 92%) and good enantioselectivities (up to 88% ee) through a palladium-catalyzed asymmetric cyclization with a novel P-chiral biaryl monophosphorus ligand. The P-chiral biaryl phosphonate can be rapidly transformed to both antipodes of a P-chiral dialkyl biaryl monophosphorus structure. The method provides a convenient access to various P-chiral biaryl monophosphines.
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