Granted Patent
B2
US 12,629,667 · App. 17/921,010 · Granted May 19, 2026
Di-nitrogen ligands for supported coordinated platinum hydrosilylation catalysts
Assignee:
THE TRUSTEES OF INDIANA UNIVERSITY
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Abstract
The invention describes metal catalysts such as Pt single-site centers on metal oxide supports, e.g., powdered supports, such as MgO, Al 2 O 3 , CeO 2 or mixtures thereof with di-nitrogen containing ligands.
Claims (18)
1 . A supported platinum catalyst comprising:
(i) a di-nitrogen ligand,
(ii) a support comprising MgO, and
(iii) an anchoring ligand,
wherein the di-nitrogen ligand is of formula (I):
wherein R 1 and R 2 are each, independently, a C 3 to a C 12 branched or unbranched alkyl group, a substituted or unsubstituted phenyl group, or a carboxylic acid group;
wherein the anchoring ligand is 2,2′-bipyridine-4,4′-dicarboxylic acid or 1,10-phenanthroline-5,6-dione;
wherein the di-nitrogen ligand in (i) and the anchoring ligand in (iii) complex with a platinum metal ion; and
wherein the anchoring ligand in (iii) is deposited on the support in (ii).
2 . The supported platinum catalyst system of claim 1 , wherein R 1 and R 2 are both an unbranched C 9 alkyl group.
3 . The supported platinum catalyst system of claim 1 , wherein R 1 and R 2 are both carboxylic acid.
4 . The supported platinum catalyst of claim 1 , wherein the di-nitrogen ligand of formula (I) is:
5 . A process comprising:
(a) providing a supported catalyst system of claim 1 ;
(b) contacting the supported catalyst system, a vinyl terminated alkene and a hydrosilylation agent under hydrosilylation conditions; and
(c) hydrosilylating the vinyl terminated alkene to form a hydrosilylated alkyl product.
6 . The process of claim 5 , wherein the vinyl terminated alkene is 1-octene.
7 . The process of claim 5 , wherein the hydrosilylation agent comprises dimethoxymethylsilane.
Assignments (2)
CONFIRMATORY LICENSE
Recorded May 30, 2023
From: INDIANA UNIVERSITY
To: UNITED STATES DEPARTMENT OF ENERGY
Reel/Frame 063803/0113 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Oct 25, 2022
From: TAIT, STEVEN L., JR.; CHEN, LINXIAO
To: THE TRUSTEES OF INDIANA UNIVERSITY
Reel/Frame 061526/0472 →
Continuity (2)
Provisional Application
63017962
· Apr 30, 2020
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