AM1 Transition State Modeling for the Enantioselectivities in the Chiral Oxazaborolidine-Catalyzed Reductions of α- and β-Aminoketones

Enantioselective cathodic reduction of 4

Enantioselective cathodic reduction of 4-substituted coumarins with alkaloids as catalysts, 2. AM1 and force-field study of the transition-state model

✍ Höweler, Udo ;Schoo, Norbert ;Schäfer, Hans-J. 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 561 KB

## Abstract The experimental data presented in Part 1 of this series lead to a refined model for the transition state of the alkaloid‐induced enantioselective electroreduction of 4‐methylcoumarin. This model is based on a zwitterionic complex formed by the protonated alkaloid and the reduced specie