Technical Notes:

1.Catalyst system that exhibits very high catalytic activity and enantioselectivity in the hydrogenation of a wide range of substrates.

2.Catalyst used in the synthesis of ß-amino acids by hydrogenation.

References:

1.Asymmetric Catalysis in Organic Synthesis, 1993, 61.

2.J. Am. Chem. Soc., 1988, 110, 629.

3.Science, 1990, 248, 1 194.

4.Encyclopedia of Reagents for Organic Synthesis, 1995, Vol. 1, 509.

5.World Patent W02005/028419.