The development of new amine–amide ligands for application in Cu(II)-catalyzed enantioselective Henry reactions
摘要:
A new type of chiral tertiary amine ligand was designed and derived from L-proline and (R)-BINOL. These new chiral ligands chelated with Cu(II) showed highly catalytic efficiency in enantioselective Henry reactions. Excellent yields (up to 99%) and high enantioselectivities (up to 96% ee) were achieved for aromatic, hetero-aromatic and aliphatic aldehyde substrates, without an additional base additive or the need for air or moisture exclusion. (C) 2016 Elsevier Ltd. All rights reserved.
The development of new amine–amide ligands for application in Cu(II)-catalyzed enantioselective Henry reactions
摘要:
A new type of chiral tertiary amine ligand was designed and derived from L-proline and (R)-BINOL. These new chiral ligands chelated with Cu(II) showed highly catalytic efficiency in enantioselective Henry reactions. Excellent yields (up to 99%) and high enantioselectivities (up to 96% ee) were achieved for aromatic, hetero-aromatic and aliphatic aldehyde substrates, without an additional base additive or the need for air or moisture exclusion. (C) 2016 Elsevier Ltd. All rights reserved.