The dataset includes the experimental details of the PhD thesis "ASYMMETRIC REDUCTIONS OF 2H-AZIRINES CATALYZED BY COPPER HYDRIDES". The files are the supporting data for Chapter 2: "Enantiomerically Enriched Aziridine-2-carboxylates via Copper-catalyzed Reductive Kinetic Resolution of 2H-Azirines", Chapter 3: "Highly Enantioselective Reductions of Monosubstituted 2H-Azirines", and Chapter 4: "Highly Enantioselective Reductions of Sterically Hindered Trisubstituted 2H-Azirines", containing all the experimental details, characterization data of substrates and products, and DFT calculations.