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. Author manuscript; available in PMC: 2021 Apr 1.
Published in final edited form as: Synlett. 2020 Apr;31(6):587–591. doi: 10.1055/s-0039-1690851

Figure 2.

Figure 2.

Relative activation energies of the reduction of the simplified enone by both diastereomeric catalysts 3a (blue) and 3b (red). Computed using B3LYP/6–31G(d). Free energy values are reported in kcal/mol, and enthalpies are in brackets. Acrolein was used as a model for the enone.