![（S)-(-)- 5,5-双[二（3,5 -二甲苯基）膦基]-4,4- 二-1 ,3-苯并二氧杂环戊烯图片](https://www.chemdbs.com/data/pub/pic/nopic180_135.png)
| 包装 | 价格 | |
| 250mg | 810元 | 留言咨询 |
| 1g | 2396元 | 留言咨询 |
| 5g | 7189元 | 留言咨询 |
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.
