[EN] ASYMMETRIC REDUCTIVE AMINATION OF KETO ACID DERIVATIVES FOR PRODUCING AMINO ACID DERIVATIVES<br/>[FR] PROCEDE DE PRODUCTION DE DERIVES D'ACIDES AMINES
申请人:TAKASAGO PERFUMERY CO LTD
公开号:WO2005028419A3
公开(公告)日:2005-06-02
Practical, Catalytic Enantioselective Hydrogenation to Synthesize<i>N</i>-Unprotected β-Amino Esters
Practical and simple catalyticenantioselectivehydrogenation reactions to synthesize N-unprotected β-amino esters have been developed: (1) asymmetrichydrogenation of N-unprotected β-enamine ester and (2) asymmetric direct reductiveamination of β-keto esters using ammonium salts. A Ru–DM-SEGPHOS complex was used as the catalyst in both cases and gave high enantioselectivity, high reactivity, and