Rhodium‐Catalyzed Highly Enantioselective Addition of Arylboronic Acids to 2‐Nitrostyrenes by
<i>tert</i>
‐Butanesulfinylphosphine Ligand
作者:Feng Lang、Guihua Chen、Liangchun Li、Junwei Xing、Fuzhong Han、Linfeng Cun、Jian Liao
DOI:10.1002/chem.201100135
日期:2011.5.2
Particularly picky ligands! An efficient (S/C, substrate/catalyst, up to 500) Rh‐catalyzed enantioselective addition of arylboronic acids to 2‐nitrostyrenes under mild conditions was developed, which gave excellent yields (up to 99 %) and enantioselectivities (up to 98 % ee) by using tert‐butanesulfinylphosphine as a ligand (see scheme). Based on this method, (R)‐cherylline was synthesized in 70 %
特别挑剔的配体!开发了在温和条件下高效(S / C,底物/催化剂,多达500种)Rh催化的芳基硼酸对2-硝基苯乙烯对映选择性加成的方法,收率(高达99%)和对映选择性(高达98%)ee)),使用叔丁烷亚磺酰基膦作为配体(参见方案)。基于此方法,合成了(R)-cherylline,总产率为70%。