Butyl-bridged diphosphine ligands for alkoxycarbonylation
US-2017022138-A1 · Jan 26, 2017 · US
Hydroformylation process
US9108912B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108912-B2 |
| Application number | US-201214122153-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2012 |
| Priority date | May 27, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
Official abstract text for this publication.
The present invention relates to a process for producing 4-hydroxybutyraldehyde, characterized in that allyl alcohol dissolved in polar solvents is reacted with CO and H 2 in the presence of a catalytic system which is formed from a rhodium complex and a cyclobutane ligand which contains at least two trans-coordinated 3 5-dialkylphenylphosphinomethyl groups, with the exclusion of catalysts which contain an aliphatic, araliphatic or cycloaliphatic phosphine as ligand.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for producing 4-hydroxybutyraldehyde, comprising: reacting allyl alcohol in polar solvents with CO and H 2 in the presence of a catalytic system which is formed from a rhodium complex and a cyclobutane ligand which comprises at least two trans-coordinated 3,5-dialkylphenylphosphinomethyl groups, with the exclusion of catalysts which contain an aliphatic, araliphatic or cycloaliphatic phosphine as ligand. 2. The process as…
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- C07F9/5027Primary
Chemistry & Metallurgy · mapped topic
- C07C45/505Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
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- What does patent US9108912B2 cover?
- The present invention relates to a process for producing 4-hydroxybutyraldehyde, characterized in that allyl alcohol dissolved in polar solvents is reacted with CO and H 2 in the presence of a catalytic system which is formed from a rhodium complex and a cyclobutane ligand which contains at least two trans-coordinated 3 5-dialkylphenylphosphinomethyl groups, with the exclusion of catalysts whi…
- Who is the assignee on this patent?
- Arlt Dieter, Umicore Ag & Co Kg
- What technology area does this patent fall under?
- Primary CPC classification C07F9/5027. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 18 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).