Enantioselective organocatalytic conjugate addition of α-nitroacetate to α,β-unsaturated ketones in water
作者:Hyoung Wook Moon、Dae Young Kim
DOI:10.1016/j.tetlet.2010.03.105
日期:2010.5
catalytic enantioselectiveconjugateaddition reaction of α-nitroacetate to α,β-unsaturated ketones promoted by chiral bifunctional organocatalysts is described. The treatment of α-nitroacetate to α,β-unsaturated ketones under aqueous-phase reaction conditions afforded the corresponding Michael adducts with high enantioselectivity. The conjugateaddition adducts are easily converted to chiral δ-keto nitroalkanes