Rhodium-Catalyzed Regio- and Enantioselective Direct Allylation of Methyl Ketones
作者:Changkun Li、Bing Li
DOI:10.1055/a-1892-4134
日期:2022.11
We report a highly branch-selective and enantioselective allylic alkylation of simple ketones with racemic aliphatic allylic carbonates under mild conditions. By using a Rh–bisoxazolinephosphine system and catalytic amounts of a base in THF, a series of chiral β-branched γ,δ-unsaturated ketones were obtained with excellent regio- and enantioselectivities. An outer-sphere nucleophilic substitution C–C