Multidentate ligands and use thereof

Patent metadata

Field	Value
Publication number	US-11065608-B2
Application number	US-201916359136-A
Country	US
Kind code	B2
Filing date	Mar 20, 2019
Priority date	Mar 21, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

The present invention provides, inter alia, a multidentate ligand having the structure of:

Also provided are methods of preparing metal complexes from the multidentate ligand, and the metal complexes prepared by such methods. Further provided are catalysts comprising such metal complexes, and various uses of such catalysts.

First claim

What is claimed is:

1. A multidentate ligand having the structure of formula

wherein:
Z is a linker group that comprises a silicon-containing group;
R 1 is selected from the group consisting of H, halide, alkyl, aryl, aralkyl, heteroalkyl, heteroaryl, alkoxy, hydroxy, heteroalkoxy, amino, alkylamino, arylamino, cyano, nitro, sulfonyl, or a heterocyclic group;
R 2 and R 3 are independently selected from the group consisting of H, halide, alkyl, aryl, aralkyl, heteroalkyl, heteroaryl, alkoxy, hydroxy, heteroalkoxy, amino, alkylamino, arylamino, cyano, nitro, sulfonyl, or a heterocyclic group; or together form a saturated or unsaturated C 5-7 homocyclic or heterocyclic ring, wherein the ring is optionally substituted with groups selected from H, halide, alkyl, aryl, aralkyl, heteroalkyl, heteroaryl, alkoxy, hydroxy, heteroalkoxy, amino, alkylamino, arylamino, cyano, nitro, sulfonyl, or a heterocyclic group.

2. The multidentate ligand of claim 1 , wherein Z is Si(R 4 ) 2 ; and wherein R 4 is selected from the group consisting of H, halide, alkyl, aryl, aralkyl, heteroalkyl, heteroaryl, alkoxy, hydroxy, heteroalkoxy, amino, alkylamino, arylamino, cyano or a heterocyclic group.

3. The multidentate ligand according to claim 1 , having the following structure:

Assignees

• Univ Columbia

Inventors

• Parkin Gerard
• Rauch Michael
• Ruccolo Serge

Classifications

• B01J31/183 Primary

  with more than one complexing nitrogen atom, e.g. phenanthroline · CPC title

• B01J2231/321

  Hydroformylation, metalformylation, carbonylation or hydroaminomethylation · CPC title

• B01J2231/323

  Hydrometalation, e.g. bor-, alumin-, silyl-, zirconation or analoguous reactions like carbometalation, hydrocarbation · CPC title

• B01J2231/645

  of C=C or C-C triple bonds · CPC title

• B01J31/1633

  covalent linkages via silicon containing groups · CPC title