Coupling a phenol and an arene using selenium dioxide

US9771311B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9771311-B2
Application numberUS-201615160367-A
CountryUS
Kind codeB2
Filing dateMay 20, 2016
Priority dateMay 20, 2015
Publication dateSep 26, 2017
Grant dateSep 26, 2017

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Method for coupling a phenol and an arene using selenium dioxide, and also novel phenol-arene derivatives.

First claim

Opening claim text (preview).

The invention claimed is: 1. Method for preparing phenol-arene derivatives, comprising the method steps of: a) adding a phenol to the reaction mixture, b) adding an arene from the group of mono- and bicyclic arenes, c) adding selenium dioxide to the reaction mixture, d) adding a solvent, e) heating the reaction mixture so that the substituted phenol and the arene, from f) the group of mono- or bicyclic arenes, are converted to a phenol-arene derivative. 2. Method according to claim 1 , wherein the phenol is a compound of the general formula (I): where R 1 , R 2 , R 3 , R 4 , R 5 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, —O—(C 6 -C 20 )-aryl, -halogen, where the alkyl and aryl groups mentioned may be substituted, and at least R 1 or R 5 or R 2 or R 4 is —H, and the monocyclic arene is a compound of the general formula (II): where R 6 , R 7 , R 8 , R 9 , R 10 , R 11 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, —O—(C 6 -C 20 )-aryl, -halogen, where the alkyl and aryl groups mentioned may be substituted, and at least one of the R 6 , R 7 , R 8 , R 9 , R 19 or R 11 radicals is —H. 3. Method according to claim 2 , wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, —O—(C 6 -C 20 )-aryl, where the alkyl and aryl groups mentioned may be substituted, and at least one of the R 6 , R 7 , R 8 , R 9 , R 10 , R 11 radicals is —H. 4. Method according to claim 2 , wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, where the alkyl and aryl groups mentioned may be substituted, and at least one R 6 , R 7 , R 8 , R 9 , R 10 , R 11 radical is —H. 5. Method according to claim 2 , wherein the R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 radicals are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, and at least one of the R 1 , R 5 , R 2 , R 3 radicals is —H, and at least one of the R 6 , R 7 , R 8 , R 9 , R 10 , R 11 radicals is —H, where the alkyl groups mentioned may be substituted. 6. Method according to claim 2 , wherein the R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 radicals are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, and at least one of the R 1 , R 5 , R 2 , R 3 radicals is —H, and at least one of the R 6 , R 7 , R 8 , R 9 , R 10 , R 11 radicals is —H, where the alkyl groups mentioned may be substituted. 7. Method according to claim 1 , wherein the phenol is a compound of the general formula (I): where R 1 , R 2 , R 3 , R 4 , R 5 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, —O—(C 6 -C 20 )-aryl, -halogen, where the alkyl and aryl groups mentioned may be substituted, and at least one of the R 1 or R 5 or R 2 or R 4 radicals is —H, and the bicyclic arene is a compound of the general formula (III): where R 12 , R 13 , R 14 , R 1 s, R 16 , R 17 , R 18 , R 19 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 -aryl, —O—(C 6 -C 20 -aryl, -halogen, and at least one of the R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 or R 19 radicals is —H, where the alkyl groups mentioned may be substituted. 8. Method according to claim 7 , where R 1 , R 2 , R 3 , R 4 , R 5 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, —O—(C 6 -C 20 )-aryl, —Cl, where the alkyl and aryl groups mentioned may be substituted, and at least one of the R 1 or R 5 or R 2 or R 4 radicals is —H, and the bicyclic arene is preferably a compound of the general formula (III), where R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —(C 6 -C 20 )-aryl, —O—(C 6 -C 20 )-aryl, —Cl, where the alkyl and aryl groups mentioned may be substituted, and at least one R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 or R 19 radical is —H. 9. Method according to claim 7 , wherein the R 1 , R 2 , R 3 , R 4 , R 5 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 radicals are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, —Cl, where the alkyl groups mentioned may be substituted, and at least one of the R 1 or R 5 or R 2 or R 3 radicals is —H, and at least one of the R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 or R 19 radicals is —H. 10. Method according to claim 7 , wherein the R 1 , R 2 , R 3 , R 4 , R 5 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , radicals are each independently selected from: —H, —(C 1 -C 12 )-alkyl, —O—(C 1 -C 12 )-alkyl, where the alkyl groups mentioned may be substituted, and at least one of the R 1 or R 5 or R 2 or R 3 radicals is —H, and at least one of the R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 or R 19 radicals is —H. 11. Method according to claim 1 or 2 , wherein the monocyclic arene is a phenyl derivative and the bicyclic arene is a naphthyl derivative. 12. Method according to claim 1 or 2 , wherein one of the group of fluorinated alcohols, fluorinated carboxylic acids or organic carboxylic acids is added as solvent to the reaction mixture in method step d). 13. Method according to claim 1 or 2 , wherein 1,1,1,3,3,3-hexafluoro-2-propanol or trifluoroacetic acid is added as solvent. 14. Method according to claim 1 or 2 , wherein the selenium dioxide is added in a molar ratio based on the sum total of the phenol and the arene within a range from 0.1 to 2.0.

Assignees

Inventors

Classifications

  • containing hydroxy or O-metal groups · CPC title

  • C07C41/30Primary

    by increasing the number of carbon atoms, e.g. by oligomerisation · CPC title

  • containing halogen · CPC title

  • containing more than one ether bond · CPC title

  • the aromatic ring being a non-condensed ring · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9771311B2 cover?
Method for coupling a phenol and an arene using selenium dioxide, and also novel phenol-arene derivatives.
Who is the assignee on this patent?
Evonik Degussa Gmbh
What technology area does this patent fall under?
Primary CPC classification C07C41/30. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 26 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).