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Questions And Answer

• Reaction

  1. Biaryl bisphosphine ligand with narrow dihedral angle. The DM-SEGPHOS ligand, as the ruthenium complex, gives superior enantioselectivity and diastereoselectivity in the asymmetric hydrogenation of α-substituted-β-ketoesters. 
  2. Copper catalyzed enantioselective [3 + 2] cycloaddition as a route to γ–amino ketones and 3-pyrrolidinones.
  3. Palladium catalyzed enantioselective addition of malonates to dihydroisoquinolines.
  4. Ruthenium catalyzed enantioselective synthesis of β amino acids by hydrogenation.
  5. Ruthenium catalyzed asymmetric hydrogenation of 3-quinuclidinone. 
  6. Diastereo- and enantioselective ruthenium-catalyzed hydrohydroxyalkylation of 2-silyl-butadienes. 
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