A stereoselectivehypervalent iodine-promoted oxidative rearrangement of 1,1-disubstituted alkenes has been developed. This practically simple protocol provides access to enantioenriched α-arylated ketones without the use of transition metals from readily accessible alkenes.
Catalytic Asymmetric Cross-Couplings of Racemic α-Bromoketones with Arylzinc Reagents
作者:Pamela M. Lundin、Jorge Esquivias、Gregory C. Fu
DOI:10.1002/anie.200804888
日期:2009.1
Nickel box: The first catalytic asymmetric method for cross‐coupling arylzinc reagents with α‐bromoketones has been developed (see scheme). This stereoconvergent carbon–carbon bond‐forming process occurs under unusually mild conditions and without activators, thereby allowing the generation of potentially labile tertiary stereocenters.