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Method for the production of monohydroxy-functionalized dialkylphosphinic acids, esters, and salts using ethylene oxide, and use thereof
US8987490B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8987490-B2 |
| Application number | US-200913140140-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 6, 2009 |
| Priority date | Dec 18, 2008 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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A method for producing monohydroxy-functionalized dialkylphosphinic acids, esters, and salts, characterized in that a) a phosphinic acid source (I) is reacted with olefins (IV) in the presence of a catalyst A to obtain an alkylphosphonous acid, the salt or ester (II) thereof, b) the obtained alkylphosphonous acid, the salt or ester (II) thereof is reacted with alkylene oxides of formula (V) in the presence of a catalyst B to obtain a monofunctionalized dialkylphosphinic acid derivative (III), catalyst A represents transition metals and/or transition metal compounds and/or catalyst systems composed of a transition metal and/or a transition metal compound and at least one ligand, and catalyst B is a Lewis acid.
First claim
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What is claimed is: 1. A method for producing monohydroxy-functionalized dialkylphosphinic acids, esters or salts thereof comprising the steps of: a) reacting a phosphinic acid source (I) with olefins (IV) in the presence of a catalyst A to form an alkylphosphono…
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- C09K21/12Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8987490B2 cover?
- A method for producing monohydroxy-functionalized dialkylphosphinic acids, esters, and salts, characterized in that a) a phosphinic acid source (I) is reacted with olefins (IV) in the presence of a catalyst A to obtain an alkylphosphonous acid, the salt or ester (II) thereof, b) the obtained alkylphosphonous acid, the salt or ester (II) thereof is reacted with alkylene oxides of formula (V) in …
- Who is the assignee on this patent?
- Hill Michael, Krause Werner, Sicken Martin, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C09K21/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 24 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).