Process for Pd-catalyzed hydroxycarbonylation of diisobutene: ligand/Pd ratio
US-10519091-B2 · Dec 31, 2019 · US
Process for the direct conversion of alkenes to carboxylic acids
US2019194110A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019194110-A1 |
| Application number | US-201816215991-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 11, 2018 |
| Priority date | Dec 21, 2017 |
| Publication date | Jun 27, 2019 |
| Grant date | — |
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Abstract
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Process for the direct conversion of alkenes to carboxylic acids.
First claim
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1 . Process comprising the process steps of: a) addition of an alkene; b) addition of a complex, comprising a compound according to structure ( 1 ) and also Pd, or a compound according to structure ( 1 ) and a substance comprising Pd c) feeding in CO; d) heating the reaction mixture such that the alkene is converted to a carboxylic acid, wherein the alkene is directly converted to the carboxylic acid. 2 . Process according to claim 1 , wherein the substance in process step b) is selected from: PdCl 2 , PdBr 2 , Pd(acac) 2 , Pd(dba) 2 (dba=dibenzylideneacetone), PdCl 2 (CH 3 CN) 2 . 3 . Process according to claim 1 , wherein the process comprises the additional process step e): e) addition of acetic acid. 4 . Process according to claim 1 , wherein the process comprises additional process step f): f) addition of water. 5 . Process according to claim 1 , wherein the process comprises the additional process step g): g) addition of p-toluenesulfonic acid. 6 . Process according to claim 1 , wherein the reaction mixture is heated to a temperature in the range from 80° C. to 160° C. in process step d). 7 . Process according to claim 1 , wherein the CO is fed in in process step c) such that the reaction proceeds under a CO pressure in the range from 20 bar to 60 bar,
Assignees
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The ring being saturated · CPC title
Cyclic compounds, e.g. cyclopentadienyls · CPC title
- C07C51/14Primary
on a carbon-to-carbon unsaturated bond in organic compounds · CPC title
Hydroformylation, metalformylation, carbonylation or hydroaminomethylation · CPC title
Iron · CPC title
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- What does patent US2019194110A1 cover?
- Process for the direct conversion of alkenes to carboxylic acids.
- Who is the assignee on this patent?
- Evonik Degussa Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C07C51/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 27 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).