IP Library › Granted Patent US 12,195,483
Granted Patent B2
US 12,195,483 · App. 17/215,075 · Granted Jan 14, 2025

Platinum complexes having ferrocene ligands for the catalysis of the alkoxycarbonylation of ethylenically unsaturated compounds

Inventors: Ji Yang (Harbin, CN); Matthias Beller (Ostseebad Nienhagen, DE); Ralf Jackstell (Rostock, DE); Robert Franke (Marl, DE)
Assignee: EVONIK OXENO GMBH & CO. KG
C07F15/02B01J31/1616C07C67/38C07F15/0086C07C2531/16
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Quick Facts
Patent No.
US 12,195,483
App. No.
17/215,075
Granted
Jan 14, 2025
Kind
B2
Abstract

Platinum complexes having ferrocene ligands for the catalysis of the alkoxycarbonylation of ethylenically unsaturated compounds.

Claims (19)

1. Complex comprising Pt and a compound of formula (I)

where

R 1 , R 2 , R 3 , R 4 are each independently selected from —(C 1 -C 12 )-alkyl, —(C 3 -C 12 )-cycloalkyl, —(C 3 -C 12 )-heterocycloalkyl, —(C 6 -C 20 )-aryl, —(C 6 -C 20 )-heteroaryl;

at least one of the R 1 , R 2 , R 3 , R 4 radicals is a —(C 6 -C 20 )-heteroaryl radical having at least six ring atoms;

and

R 1 , R 2 , R 3 , R 4 , if they are —(C 1 -C 12 )-alkyl, —(C 3 -C 12 )-cycloalkyl, —(C 3 -C 12 )-heterocycloalkyl, —(C 6 -C 20 )-aryl or —(C 6 -C 20 )-heteroaryl,

may each independently be substituted by one or more substituents selected from: —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —OH, —NH 2 , halogen.

2. The complex according to claim 1 ,

wherein at least two of the R 1 , R 2 , R 3 , R 4 radicals are a —(C 6 -C 20 )-heteroaryl radical having at least six ring atoms.

3. The complex according to claim 1 ,

wherein the R 1 and R 3 radicals are each a —(C 6 -C 20 )-heteroaryl radical having at least six ring atoms.

4. The complex according to claim 1 ,

wherein the R 1 and R 3 radicals are each 2-pyridyl.

5. The complex according to claim 1 ,

wherein R 2 and R 4 are —(C 1 -C 12 )-alkyl.

6. The complex according to claim 1 ,

wherein R 2 and R 4 are tert-butyl.

7. The complex according to claim 1 ,

wherein the compound (I) has the structure (1):

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2024
From: EVONIK OPERATIONS GMBH
To: EVONIK OXENO GMBH & CO. KG
Reel/Frame 066242/0585 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2021
From: YANG, JI; BELLER, MATTHIAS; JACKSTELL, RALF; FRANKE, ROBERT
To: EVONIK OPERATIONS GMBH
Reel/Frame 057825/0055 →
Priority Claims (1)
EP 20166579 · Mar 30, 2020 · regional
Continuity (1)
Related Publication 20210300957A1 · Sep 30, 2021
References Cited (11)
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Colacot, T. J., et al. Precious Metal-Phosphine Complexes for Homogeneous Catalysis: Synthesis and Characterization of a Complete Series of Cp [cited by applicant]