Diphosphites having an open, 2,4-methylated outer unit
US-2022089623-A1 · Mar 24, 2022 · US
Diphosphites with an open, 3-methylated outer unit
US11618760B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11618760-B2 |
| Application number | US-202217718525-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2022 |
| Priority date | Apr 16, 2021 |
| Publication date | Apr 4, 2023 |
| Grant date | Apr 4, 2023 |
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- Title
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Abstract
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Diphosphites having an open, 3-methylated outer unit and use thereof in hydroformylation.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound of the structure (I): where R 1 , R 2 , R 3 , R 4 are selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl. 2. The compound according to claim 1 , wherein R 1 , R 3 are selected from: —H, —(C 1 -C 12 )-alkyl. 3. The compound according to claim 1 , where R 3 are —(C 1 -C 12 )-alkyl. 4. The compound according to claim 1 , where R 1 , R 3 are the same radical. 5. The compound according to claim 1 , wherein R 2 , R 4 are selected from: —H, —O—(C 1 -C 12 )-alkyl. 6. The compound according to claim 1 , wherein R 2 , R 4 are —O—(C 1 -C 12 )-alkyl. 7. The compound according to claim 1 , where R 2 , R 4 are the same radical. 8. The compound according to claim 1 , where the compound has the structure (1): 9. A ligand-metal complex comprising the compound according to claim 1 and a metal selected from: Rh, Ru, Co or Ir. 10. A process comprising the process steps of: a) initially charging an olefin, b) adding a compound according to claim 1 and a substance containing a metal selected from: Rh, Ru, Co or Ir, c) supplying H 2 and CO, and d) heating the reaction mixture from steps a) to c), to convert the olefin into an aldehyde.
Assignees
Inventors
Classifications
Rhodium · CPC title
Phosphites ((RO)3P) , their isomeric phosphonates (R(RO)2P=O) and RO-substitution derivatives thereof · CPC title
by oxo-reactions · CPC title
containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr} · CPC title
- C07F9/65744Primary
condensed with carbocyclic or heterocyclic rings or ring systems · CPC title
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- What does patent US11618760B2 cover?
- Diphosphites having an open, 3-methylated outer unit and use thereof in hydroformylation.
- Who is the assignee on this patent?
- Evonik Operations Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C07F9/65744. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 04 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).