Developed by Boaz and co-workers at the Eastman Chemical Company as a three step synthesis from PPFA. Applications that result in >80% ee are primarily in Rh catalysed hydrogenation, with one example of Ir catalysis.
The synthesis of the optimised (and not commercially available) ligand for this reaction is available here.
Absolute configuration not stated, but for the phenyl-substituted product tentatively assigned as R.
Ir – Hydrogenation TA08-19-938