Synthesis of chiral bisphosphines with tunable bite angles and their applications in asymmetric hydrogenation of beta-ketoesters.
Z Zhang et al.
The Journal of organic chemistry, 65(19), 6223-6226 (2000-09-16)
Wenjun Tang et al.
Journal of the American Chemical Society, 125(32), 9570-9571 (2003-08-09)
Hydrogenation of a series of cyclic beta-(acylamino)acrylates with tetrasubstituted olefins has been accomplished successfully with the use of Ru catalysts with chiral biaryl ligands such as C3-TunaPhos, and up to over 99% ee's have been achieved. This methodology provides an...
Aiwen Lei et al.
Journal of the American Chemical Society, 126(6), 1626-1627 (2004-02-12)
A new type of alpha-phthalimide ketones was hydrogenated in excellent enantioselectivity by using a Ru-(C3-TunePhos) complex as the catalyst. Up to 10 000 turnovers have been achieved in more than 99% ee in the hydrogenation reaction. A dynamic kinetic resolution...