Technical Notes:

1.A chiral diphosphine ligand used in the highly-enantioselective hydrogenation of ketoesters, hydroxyketones, ketophosphonates and succinates.

2.A ligand used for the dynamic kinetic resolution of at,ß- unsaturated lactones via asymmetric copper catalyzed conjugate reduction.

3.Used in the intramolecular Heck reaction for the synthesis of diterpenoids.

4.Used in asymmetric P auson-Khand reaction.

5.Used in asymmetric iminonitroso Diels-Alder re action.

6.Palladium catalyzed asymmetric hydrogenation of N-tosyl ketimines

References:

1.Tetrahedron L ett., 2003, 44, 823.

2.Angew. ( hem. Int. Ed., 2005, 44, 61 77.

3.J. Org. Chem., 2010, 75, 1 90.

4.Adv. Synth. Catal., 2007, 349, 1 999.

5.Tetrahedron L ett., 2009, 50, 5879.

6.J. Org. Chem., 2007, 72, 3729.