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Sku 15-0479-250MG
STREM
| Technical Notes: 1. Biaryl bisphos phine ligand with narrow dihedral angle. The DM-SEGPHOS ligand, as the ruthenium complex, gives superior enantios electivity and diastereoselectivity in the asymmetric hydrogenation of a-substituted-ß-ketoesters. See 15-0066. 2.Copper catalyzed enantioselective [3 + 2] cycloaddition as a route to Y amino ketones and 3-pyrrolidinones. 3.Palladium catalyzed e nantioselective addition of malonates to dihydroisoquinolines. 4.Ruthenium catalyzod enantioselective synthesis of ß amino acids by hydroge nation 5.Ruthenium catalyzed asymmetric hydrogenation of 3-quinuclidinone. See 44-0098 for Ru catalyst. 6.Diastereo- and enantioselective ruthenium- catalyzed hydrohydroxyalkylation of 2-silyl-butadienes. References: 1.Org. Lett., 2005, 7, 1051. 2.J. Am. Chem. Soc., 2006, 128, 14010. 3.WIPO Pat. W 2005028419. 4.U.S. Pat. App. 2006047122. 5.J. Am. Chem. Soc., 2011 , 133, 1 0582. |
