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US-9512093-B2 · Dec 6, 2016 · US
Method for producing chlorohydrocarbon having conjugated double bonds
US9845273B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9845273-B2 |
| Application number | US-201414189373-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2014 |
| Priority date | Mar 14, 2013 |
| Publication date | Dec 19, 2017 |
| Grant date | Dec 19, 2017 |
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Abstract
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Provided is a method for producing a chlorohydrocarbon having conjugated double bonds by stereoselectively chlorinating an alcohol having conjugated double bonds. More specifically, provided is a method for producing a chlorohydrocarbon having conjugated double bonds, the method including a step of chlorinating an alcohol having conjugated double bonds with a chlorinating agent in a solvent in the presence of a base and in the absence of metal salt for chlorination of the alcohol, and the alcohol being represented by the formula (1): RCH═CHCH═CH—Z—OH (1) wherein R represents a hydrogen atom or a linear, branched or cyclic C 1-17 monovalent hydrocarbon group which may have at least one double bond or at least one triple bond; and Z represents a linear, branched or cyclic C 1-17 divalent hydrocarbon group which may have at least one double bond or at least one triple bond.
First claim
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The invention claimed is: 1. A method for producing a chlorohydrocarbon having conjugated double bonds, the method comprising a step of chlorinating an alcohol having conjugated double bonds with a chlorinating agent in a solvent in the presence of a base and in the absence of metal salt for chlorination of the alcohol, wherein the alcohol is of the following formula (1): RCH═CHCH═CH—Z—OH (1) wherein R is a hydrogen atom, a linear C 1-17 , a branched C 1-17 or a cyclic C 3-17 monovalent hydrocarbon group which may have at least one double bond or at least one triple bond; and Z represents a linear C 2-17 , a branched C 2-17 or a cyclic C 3-17 divalent hydrocarbon group which may have at least one double bond or at least one triple bond, wherein the chlorinating agent is a sulfonyl chloride and the base is pyridine, wherein the chlorination reaction is substantially stereoselective, and wherein the amount of isomerization of the chlorohydrocarbon having conjugated double bonds is less than 10%.
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- What does patent US9845273B2 cover?
- Provided is a method for producing a chlorohydrocarbon having conjugated double bonds by stereoselectively chlorinating an alcohol having conjugated double bonds. More specifically, provided is a method for producing a chlorohydrocarbon having conjugated double bonds, the method including a step of chlorinating an alcohol having conjugated double bonds with a chlorinating agent in a solvent in …
- Who is the assignee on this patent?
- Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C07C17/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 19 2017 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).