Based Organocatalysts for Asymmetric Oxidations and Reductions

Cinchona-Based Organocatalysts for Asymmetric Oxidations and Reductions 

Ueon Sang Shin, Je Eun Lee, Jung Woon Yang, and Choong Eui Song 

On the contrary, to achieve a successful cinchona-catalyzed asymmetric oxidation chemistry, cinchona-catalyzed asymmetric reduction has been explored very little despite the importance of this reaction. Previous reports on this subject are restricted to the reduction of aromatic ketones and, moreover, the enantioselectivities achieved to date remain far from satisfactory when compared with metal catalysis. 

The schemes exemplified in this chapter will demonstrate the indispensable role of cinchona alkaloids as catalysts in these important research areas. 

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