Alcohol Amination with Aminoacidato Cp*Ir(III)-Complexes
as Catalysts: Dissociation of the Chelating Ligand during Initiation
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Abstract
The use of aminoacidato Cp*Ir(III)-complexes
in catalytic alcohol amination reactions of primary and secondary
alcohols with amines permits to carry out these transformations at
very mild reaction conditions without the use of an additional base.
Herein we discuss the fate of the chelating aminoacidato ligands upon
initiation of Cp*Ir(III)-complexes from a mechanistic perspective.
Catalyst initiation has been followed by NMR using isotopically labeled <sup>13</sup>C,<sup>15</sup>N-glycinato complexes