Asymmetric organocatalytic oxy-Michael addition of alcohols to α,β-unsaturated aldehydes
作者:Taichi Kano、Youhei Tanaka、Keiji Maruoka
DOI:10.1016/j.tet.2007.03.179
日期:2007.8
A 1,4-addition of alcohols to α,β-unsaturatedaldehydes was found to be efficiently promoted by biphenyldiamine-based catalyst 3 without formation of the acetals. An asymmetric variant of this reaction has also been performed by designing a novel axially chiral organocatalyst (R)-10c.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.