P(O)R2-Directed Enantioselective C-H Olefination toward Chiral Atropoisomeric Phosphine-Olefin Compounds
2017
An effective synthesis of chiral atropoisomeric biaryl phosphine–olefin compounds via palladium-catalyzed enantioselective C–H olefination has been developed for the first time. The reactions are operationally simple, tolerate wide functional groups, and have a good ee value. Notably, P(O)R2 not only acts as the directing group to direct C–H activation in order to make a useful ligand but also serves to facilitate composition of the product in a useful manner in this transformation.
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