A new method for the asymmetric hydrogenation of allylamines uses CO2 to prevent side reactions.
Various factors like pressure, time, solvent, and base additives were analyzed to enhance enantioselectivity and conversion.
The method achieved total conversion of 2-arylprop-2-en-1-amine with an enantiomeric excess of up to 82%, showing that the right choice of base improves selectivity in the reaction.