Enantioselective conjugate addition of diethylzinc to enones using chiral β-aminoalcohol as chiral catalyst or ligand
摘要:
Optically active beta-substituted ketones of up to 94% e.e. were synthesized by the enantioselective conjugate addition of diethylzinc to enones in the presence of either a catalytic or stoichiometric amount of chiral beta-aminoalcohol.
Application of Enantiopure 1-(Aminoalkyl)naphthols and 2-(Aminoalkyl)phenols in the Enantioselective Addition of Organozinc to <font>α</font>,<font>β</font>-Unsaturated Carbonyl Compounds
Several enantiopure 1-(aminoalkyl)naphthols and a 2-(aminoalkyl)phenol were tested as ligands in the Nickel-catalyzed enantioselective addition of organozinc to chalcones.