Asymmetric α-Sulfonyl- and α-Phosphoryl-Oxylation of Ketones by a Chiral Hypervalent Iodine(III)
作者:Guillaume Levitre、Audrey Dumoulin、Pascal Retailleau、Armen Panossian、Frédéric R. Leroux、Géraldine Masson
DOI:10.1021/acs.joc.7b01597
日期:2017.11.17
An enantioselective direct oxygenation of propiophenone derivatives mediated by a catalytic or stoichiometric amount of new chiral non-C2-symmetric iodoarenes(III) is reported. The reaction gives an easy entry to optically active α-sulfonyl- and α-phosphoryl oxyketones in respectable yields and enantioselectivities.
A simple synthesis of a library of novel C−N axially chiral iodoarenes is achieved in a three‐step synthesis from commercially available aniline derivatives. C−N axial chiral iodine reagents are rarely investigated in the hypervalent iodine arena. The potential of the novel chiral iodoarenes as organocatalysts for stereoselective oxidative transformations is assessed using the well explored, but challenging