Highly Enantioselective Hydrogenation of β‐Alkyl and β‐(ω‐Chloroalkyl) Substituted β‐Keto Esters
摘要:
Highly enantioselective hydrogenation of beta-alkyl and beta-(omega-chloroalkyl) substituted beta-keto esters was achieved with Ru catalysts based on chiral diphosphinesin EtOH at 50 degrees C under 50-bar initial hydrogen pressure, affording the corresponding beta-hydroxy esters in > 98% ee.
Highly enantioselective hydrogenation of beta-alkyl and beta-(omega-chloroalkyl) substituted beta-keto esters was achieved with Ru catalysts based on chiral diphosphinesin EtOH at 50 degrees C under 50-bar initial hydrogen pressure, affording the corresponding beta-hydroxy esters in > 98% ee.