Asymmetric Catalysis from a Chinese Perspective by Qi-Lin Zhou, Jian-Hua Xie (auth.), Shengming Ma (eds.)

By Qi-Lin Zhou, Jian-Hua Xie (auth.), Shengming Ma (eds.)

Qi-Lin Zhou and Jian-Hua Xie: Chiral Spiro Catalysts.- Fuk Loi Lam, Fuk Yee Kwong and Albert S. C. Chan: Chiral Phosphorus Ligands with attention-grabbing houses and functional Applications.- Jiang Pan, Hui-Lei Yu, Jian-He Xu, Guo-Qiang Lin: Advances in Biocatalysis: Enzymatic Reactions and Their Applications.- Mei-Xiang Wang: Enantioselective Biotransformations of Nitriles.- guy family members Wong, Yiu Chung Yip and Dan Yang: uneven Epoxidation Catalyzed by way of Chiral Ketones.- W. J. Liu, N. Li and L. Z. Gong: uneven Organocatalysis.- Qing-Hua Fan and Kuiling Ding: Enantioselective Catalysis with Structurally Tunable Immobilized Catalysts.- Chang-Hua Ding, Xue-Long Hou: Transition Metal-Catalyzed uneven Allylation.- Jian Zhou and Yong Tang: Enantioselective Reactions with Trisoxazolines.- Xiang-Ping Hu, Duo-Sheng Wang, Chang-Bin Yu, Yong-Gui Zhou, and Zhuo Zheng: event in uneven Hydrogenation: Synthesis of Chiral Phosphorus Ligands and uneven Hydrogenation of Heteroaromtics.

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By Qi-Lin Zhou, Jian-Hua Xie (auth.), Shengming Ma (eds.)

Qi-Lin Zhou and Jian-Hua Xie: Chiral Spiro Catalysts.- Fuk Loi Lam, Fuk Yee Kwong and Albert S. C. Chan: Chiral Phosphorus Ligands with attention-grabbing houses and functional Applications.- Jiang Pan, Hui-Lei Yu, Jian-He Xu, Guo-Qiang Lin: Advances in Biocatalysis: Enzymatic Reactions and Their Applications.- Mei-Xiang Wang: Enantioselective Biotransformations of Nitriles.- guy family members Wong, Yiu Chung Yip and Dan Yang: uneven Epoxidation Catalyzed by way of Chiral Ketones.- W. J. Liu, N. Li and L. Z. Gong: uneven Organocatalysis.- Qing-Hua Fan and Kuiling Ding: Enantioselective Catalysis with Structurally Tunable Immobilized Catalysts.- Chang-Hua Ding, Xue-Long Hou: Transition Metal-Catalyzed uneven Allylation.- Jian Zhou and Yong Tang: Enantioselective Reactions with Trisoxazolines.- Xiang-Ping Hu, Duo-Sheng Wang, Chang-Bin Yu, Yong-Gui Zhou, and Zhuo Zheng: event in uneven Hydrogenation: Synthesis of Chiral Phosphorus Ligands and uneven Hydrogenation of Heteroaromtics.

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O O Br2 AcOH, RT quant. O 19 O Br 20 1. n-BuLi, THF, -78°C Ph2PCl O 2. 3 Diastereoselective Synthesis of Chiral Phosphine Ligands Without Resolution A classical method for preparing enantiomerically pure biaryl ligands involves aryl–aryl coupling followed by a resolution of the racemic atropisomers. The apparent disadvantage of the classical approach is that the maximum yield of the desired atropisomer cannot exceed 50%, and the enantiomeric purities of the ligands vary from high-to-moderate, not to mention that resolution procedures are frequently tedious.

4]nona-1,6-diene backbone have been reported by Ding et al. [119]. The SpinPHOX ligands were successfully applied in Ir-catalyzed asymmetric hydrogenation of imines, providing chiral amines with excellent enantioselectivities (up to 98% ee). This result will encourage the development of efficient chiral ligands and catalysts with other spiro backbone. The chiral ligands and catalysts play a crucial role in transition metal-catalyzed asymmetric reactions. The discovery of more efficient and enantioselective chiral ligands and catalysts will promote the development of highly economical, as well as environmental benign chiral technologies for the preparation of chiral ­compounds.

The discovery of more efficient and enantioselective chiral ligands and catalysts will promote the development of highly economical, as well as environmental benign chiral technologies for the preparation of chiral ­compounds. Undoubtedly, the chiral spiro ligands and related catalysts offered a great potential for satisfying the requirements of mankind for chiral compounds. -L. -H. Xie References 1. Yoon TP, Jacobsen EN (2003) Science 299:1691–1693 2. Noyori R, Takaya H (1990) Acc Chem Res 23:345–350 3.

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