The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2025
Filed:
Nov. 09, 2022
Applicant:
Shenzhen Catalys Technology Co., Ltd, Shenzhen, CN;
Inventors:
Assignee:
SHENZHEN CATALYS TECHNOLOGY CO., LTD, Guangdong, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F 17/02 (2006.01); B01J 31/22 (2006.01); C07C 29/145 (2006.01); C07C 37/00 (2006.01); C07C 41/18 (2006.01); C07C 237/08 (2006.01); C07D 213/30 (2006.01); C07D 333/16 (2006.01);
U.S. Cl.
CPC ...
C07F 17/02 (2013.01); B01J 31/2295 (2013.01); C07C 29/145 (2013.01); C07C 37/002 (2013.01); C07C 41/18 (2013.01); C07C 237/08 (2013.01); C07D 213/30 (2013.01); C07D 333/16 (2013.01);
Abstract
Disclosed are a chiral multidentate ligand (I), a preparation, and an application thereof. In this method, compound (M1) is subjected to condensation with compound (M2) followed by amine deprotection in the presence of a deprotection reagent to obtain compound (M4). Compound (1) is subjected to deprotonation by butyl lithium and phosphorization followed by dimethylamino group substitution to produce compound (3). The compound (3) and the compound (M4) are reacted in the presence of triethylamine to produce chiral multidentate ligands.