EP 1856028 A1 20071121 - PROCESS TO CHIRAL BETA AMINO ACID DERIVATIVES BY ASYMMETRIC HYDROGENATION
Title (en)
PROCESS TO CHIRAL BETA AMINO ACID DERIVATIVES BY ASYMMETRIC HYDROGENATION
Title (de)
VERFAHREN FÜR CHIRALE BETA-AMINOSÄUREN-DERIVATE DURCH ASYMMETRISCHE HYDRIERUNG
Title (fr)
PROCEDE DE TRANSFORMATION EN DERIVES CHIRAUX D'ACIDES AMINES BETA PAR L'HYDROGENATION ASYMETRIQUE
Publication
Application
Priority
- US 2006002147 W 20060120
- US 64669705 P 20050124
Abstract (en)
[origin: WO2006081151A1] The present invention relates to a process for the efficient preparation of enantiomerically enriched beta amino acid derivatives which are useful in the asymmetric synthesis of biologically active molecules. The process comprises an enantioselective hydrogenation of a prochiral beta amino acrylic acid derivative substrate in the presence of an ammonium salt and a transition metal precursor complexed with a chiral ferrocenyl diphosphine ligand.
IPC 8 full level
C07C 227/32 (2006.01)
CPC (source: EP)
C07D 487/04 (2013.01)
Citation (search report)
See references of WO 2006081151A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006081151 A1 20060803; AR 052879 A1 20070411; AU 2006208297 A1 20060803; CA 2594494 A1 20060803; CN 101175714 A 20080507; EP 1856028 A1 20071121; JP 2008528503 A 20080731; TW 200637805 A 20061101
DOCDB simple family (application)
US 2006002147 W 20060120; AR P060100175 A 20060117; AU 2006208297 A 20060120; CA 2594494 A 20060120; CN 200680002872 A 20060120; EP 06719111 A 20060120; JP 2007552303 A 20060120; TW 95102476 A 20060123