Direct anti-selective asymmetric hydrogenation of α-amino-β-keto esters through dynamic kinetic resolution using Ru-axially chiral phosphine catalysts—stereoselective synthesis of anti-β-hydroxy-α-amino acids
摘要:
The asymmetric hydrogenation of alpha-amino-beta-keto esters using ruthenium (Ru) anti-selectively proceeds via a dynamic kinetic resolution to afford anti-beta-hydroxy-alpha-amino acids with high enantiomeric purities, which are important chiral building blocks for the synthesis of medicines and natural products. A mechanistic investigation has revealed that the Ru-catalyzed asymmetric hydrogenation takes place via the hydrogenation of the double bond in the enol tautomer of the substrate. (C) 2009 Elsevier Ltd. All rights reserved.
Direct anti-selective asymmetric hydrogenation of α-amino-β-keto esters through dynamic kinetic resolution using Ru-axially chiral phosphine catalysts—stereoselective synthesis of anti-β-hydroxy-α-amino acids
摘要:
The asymmetric hydrogenation of alpha-amino-beta-keto esters using ruthenium (Ru) anti-selectively proceeds via a dynamic kinetic resolution to afford anti-beta-hydroxy-alpha-amino acids with high enantiomeric purities, which are important chiral building blocks for the synthesis of medicines and natural products. A mechanistic investigation has revealed that the Ru-catalyzed asymmetric hydrogenation takes place via the hydrogenation of the double bond in the enol tautomer of the substrate. (C) 2009 Elsevier Ltd. All rights reserved.
PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE BETA-HYDROXY- ALPHA-AMINOCARBOXYLIC ACID DERIVATIVES
申请人:Nissan Chemical Industries, Ltd.
公开号:EP1650185B1
公开(公告)日:2013-05-01
US7799941B2
申请人:——
公开号:US7799941B2
公开(公告)日:2010-09-21
Direct anti-selective asymmetric hydrogenation of α-amino-β-keto esters through dynamic kinetic resolution using Ru-axially chiral phosphine catalysts—stereoselective synthesis of anti-β-hydroxy-α-amino acids
The asymmetric hydrogenation of alpha-amino-beta-keto esters using ruthenium (Ru) anti-selectively proceeds via a dynamic kinetic resolution to afford anti-beta-hydroxy-alpha-amino acids with high enantiomeric purities, which are important chiral building blocks for the synthesis of medicines and natural products. A mechanistic investigation has revealed that the Ru-catalyzed asymmetric hydrogenation takes place via the hydrogenation of the double bond in the enol tautomer of the substrate. (C) 2009 Elsevier Ltd. All rights reserved.