Effective ligands for iron-catalyzed ketone and imine reduction

2 Effective ligands for iron-catalyzed ketone and imine reduction 

or part of cyclohexyldiamine ring R = Et, Aryl 

The synthesis and properties of these catalysts will be discussed in more detail below but first some aspects of the structures will be discussed to emphasize important ligand design features for iron-catalyzed hydrogenation processes. 

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