US 12,071,444 B2
Synthesis and use of oxa-spirodiphosphine ligand
Xumu Zhang, Shenzhen (CN); Genqiang Chen, Shenzhen (CN); and Jiaming Huang, Shenzhen (CN)
Assigned to SHENZHEN CATALYS TECHNOLOGY CO., LTD, Shenzhen (CN)
Filed by SHENZHEN CATALYS TECHNOLOGY CO., LTD, Shenzhen (CN)
Filed on Mar. 8, 2022, as Appl. No. 17/689,925.
Application 17/689,925 is a continuation of application No. 16/770,087, filed on Jun. 5, 2020, granted, now 11,299,507.
Prior Publication US 2022/0185835 A1, Jun. 16, 2022
Int. Cl. C07F 15/00 (2006.01); B01J 31/22 (2006.01); B01J 31/24 (2006.01); C07C 51/36 (2006.01); C07F 9/6561 (2006.01)
CPC C07F 15/0046 (2013.01) [B01J 31/2213 (2013.01); B01J 31/249 (2013.01); C07C 51/36 (2013.01); C07F 9/6561 (2013.01); B01J 2231/645 (2013.01); B01J 2531/821 (2013.01); C07B 2200/07 (2013.01)] 6 Claims
 
1. An oxa-spirodiphosphine ligand, having a structure of:

OG Complex Work Unit Chemistry