	US 12,275,752 B2
	Class of phosphine nitrogen ligand with multiple chiral centers and its synthesis method and application
Shengming Ma, Shanghai (CN); Qi Liu, Shanghai (CN); and Haibo Xu, Shanghai (CN)
Assigned to SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES, Shanghai (CN)
Appl. No. 17/618,102
Filed by SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES, Shanghai (CN)
PCT Filed May 13, 2020, PCT No. PCT/CN2020/090004 § 371(c)(1), (2) Date Dec. 10, 2021, PCT Pub. No. WO2020/248756, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 201910513442.9 (CN), filed on Jun. 13, 2019.
Prior Publication US 2022/0332739 A1, Oct. 20, 2022
Int. Cl. C07F 9/6509 (2006.01)

CPC C07F 9/650905 (2013.01) [C07B 2200/07 (2013.01)]

9 Claims

1. A class of phosphine nitrogen ligand with multiple chiral centers, wherein, the structures are as formulas L1 or L2:

OG Complex Work Unit Chemistry

wherein,

OG Complex Work Unit Chemistry

* represents the chiral center.