Chiral enolates for highly stereoselective aldol reactions—Scope and limitations
作者:Matthias Welker、Simon Woodward
DOI:10.1016/j.tet.2010.10.048
日期:2010.12
of α,β-disubstituted ketonesthrough aldol reactions are compared. A one-pot ACA/aldol domino process is lower yielding than alternative procedures involving enantiomerically pure β-substituted silyl enol ethers. The use of chiral acetals derived from hydrobenzoin provides access to syn and anti diols in moderate to good yields and high diastereoselectivities. A novel synthesis of functionalized β,γ-unsaturated