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Diastereocontrol in asymmetric allyl-allyl cross-coupling: stereocontrolled reaction of prochiral allylboronates with prochiral allyl chlorides.


ABSTRACT: Palladium-catalyzed allyl-allyl cross-coupling was investigated with substituted prochiral allylic boronates. These reactions deliver products bearing adjacent stereocenters, and the issue of diastereocontrol is therefore paramount. Under appropriately modified conditions, this allyl-allyl coupling strategy was found to apply to a range of substrates, generally occurring with high enantioselectivity (92:8 to >99:1 er) and good diastereoselection (4:1 to 14:1 dr).

SUBMITTER: Brozek LA 

PROVIDER: S-EPMC3219057 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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Diastereocontrol in asymmetric allyl-allyl cross-coupling: stereocontrolled reaction of prochiral allylboronates with prochiral allyl chlorides.

Brozek Laura A LA   Ardolino Michael J MJ   Morken James P JP  

Journal of the American Chemical Society 20111005 42


Palladium-catalyzed allyl-allyl cross-coupling was investigated with substituted prochiral allylic boronates. These reactions deliver products bearing adjacent stereocenters, and the issue of diastereocontrol is therefore paramount. Under appropriately modified conditions, this allyl-allyl coupling strategy was found to apply to a range of substrates, generally occurring with high enantioselectivity (92:8 to >99:1 er) and good diastereoselection (4:1 to 14:1 dr). ...[more]

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