[EN] NOVEL CHIRAL PHOSPHORUS LIGANDS<br/>[FR] NOUVEAUX LIGANDS DE PHOSPHORE CHIRAUX
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2011056737A1
公开(公告)日:2011-05-12
The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1 - rR> 4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1-rR>4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
Novel and Efficient Chiral Bisphosphorus Ligands for Rhodium-Catalyzed Asymmetric Hydrogenation
作者:Wenjun Tang、Andrew G. Capacci、Andre White、Shengli Ma、Sonia Rodriguez、Bo Qu、Jolaine Savoie、Nitinchandra D. Patel、Xudong Wei、Nizar Haddad、Nelu Grinberg、Nathan K. Yee、Dhileepkumar Krishnamurthy、Chris H. Senanayake
DOI:10.1021/ol1000999
日期:2010.3.5
A series of structurally novel, operationally convenient, and efficient chiral 2-phosphino-2,3-dihydrobenzo[d][1,3]oxaphosphole ligands was developed. Applications of ligands 3a and 3b in rhodium-catalyzedasymmetrichydrogenation of α-(acylamino)acrylates and β-(acylamino)acrylates provided excellent enantioselectivities (up to >99% ee) and reactivities (up to 10 000 TON).
开发了一系列结构新颖,操作方便且有效的手性2-膦基-2,3-二氢苯并[ d ] [1,3]氧杂磷配体。配体3a和3b在铑催化的α-(酰基氨基)丙烯酸酯和β-(酰基氨基)丙烯酸酯的不对称氢化反应中的应用提供了极好的对映选择性(高达99%ee)和反应性(高达10000吨)。