18.4
[1]. Wenjun Tang, et al. Enantioselective hydrogenation of tetrasubstituted olefins of cyclic beta-(acylamino)acrylates. J Am Chem Soc. 3 Aug 13;15(3):957-1.
[]. Z Zhang, et al. Synthesis of chiral bisphosphines with tunable bite angles and their applications in asymmetric hydrogenation of beta-ketoesters. J Org Chem. Sep ;5(19):3-.
H3-H315-H319-H335
P1-P4-P7-P71-P8-P3+P35-P34+P34-P33-P3+P34-P45-P51
GHS7