Technical Notes:
1.L igand used in the rhodium-catalyzed, asymmetric hydrogenation of ß-amido-vinylphos phonates.
2. Ligand used in the rhodium or iridium-catalyzed asymmetric hydrogenation of a,ß-uns aturated esters.
References:
1Tetrahedron Asymm., 2008, 19, 1189.
2.Tetrahedron Asymm., 2008, 19, 938