(R)-(+)-7,7'-Bis[di(4-methylphenyl)phosphino]-2,2',3,3'-tetrahydro-1,1'-spirobiindane, min. 97% (R)-Tol-SDP

Technical Notes:
1. Ligands used for the ruthenium-catalyzed hydrogenation of simple and cyclic ketones
with high activity and enantioselectivity.
2. Ligands used for palladium-catalyzed asymmetric allylic alkylations.
References:
1. J. Am. Chem. Soc., 2003, 125, 4404. 2.J. Org. Chem., 2005, 70, 2967.
3.Adv. Synth. Catal., 2004, 346, 625.