Unsymmetrical Ferrocenylethylamine-Derived Monophosphoramidites:  Highly Efficient Chiral Ligands for Rh-Catalyzed Enantioselective Hydrogenation of Enamides and α-Dehydroamino Acid Derivatives

2006 ◽  
Vol 71 (1) ◽  
pp. 393-396 ◽  
Author(s):  
Qing-Heng Zeng ◽  
Xiang-Ping Hu ◽  
Zheng-Chao Duan ◽  
Xin-Miao Liang ◽  
Zhuo Zheng
Keyword(s):  
Enantioselective Hydrogenation ◽  
Chiral Ligands ◽  
Highly Efficient ◽  
Dehydroamino Acid

Developing chiral phosphorus ligands for asymmetric hydrogenations

2010 ◽  
Vol 82 (7) ◽  
pp. 1429-1441 ◽  
Author(s):  
Wei Li ◽  
Guohua Hou ◽  
Xianfeng Sun ◽  
Gao Shang ◽  
Weicheng Zhang ◽  
...  
Keyword(s):  
Phosphine Ligands ◽  
Chiral Ligands ◽  
Phosphorus Ligands ◽  
Keto Esters ◽  
Asymmetric Hydrogenations ◽  
Dehydroamino Acid

Chiral rigid and electron-donating phosphocyclic phosphine ligands and modular atropisomeric biaryl phosphine ligands were designed and synthesized. The performance of these chiral ligands in the asymmetric hydrogenations of prochiral dehydroamino acid derivatives, enamides, imines, keto esters, and ketones has been demonstrated to be excellent.

Highly efficient conjugate addition of diethylzinc to enones catalyzed by chiral ligands derived from (S)-mandelic acid

2013 ◽  
Vol 24 (18) ◽  
pp. 1117-1119 ◽  
Author(s):  
Michał Rachwalski ◽  
Szymon Jarzyński ◽  
Stanisław Leśniak
Keyword(s):  
Mandelic Acid ◽  
Conjugate Addition ◽  
Chiral Ligands ◽  
Highly Efficient

Air-Stable Catalysts for Highly Efficient and Enantioselective Hydrogenation of Aromatic Ketones

2002 ◽  
Vol 67 (22) ◽  
pp. 7908-7910 ◽  
Author(s):  
Jing Wu ◽  
Hua Chen ◽  
Waihim Kwok ◽  
Rongwei Guo ◽  
Zhongyuan Zhou ◽  
...  
Keyword(s):  
Enantioselective Hydrogenation ◽  
Aromatic Ketones ◽  
Highly Efficient
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