CH100368A - Process for the preparation of a 4-oxynaphthalene-1-aryl ketone. - Google Patents

Process for the preparation of a 4-oxynaphthalene-1-aryl ketone.

Info

Publication number
CH100368A
CH100368A CH100368DA CH100368A CH 100368 A CH100368 A CH 100368A CH 100368D A CH100368D A CH 100368DA CH 100368 A CH100368 A CH 100368A
Authority
CH
Switzerland
Prior art keywords
oxynaphthalene
chloro
preparation
aryl ketone
phenylketone
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH100368A publication Critical patent/CH100368A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/82—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups
    • C07C49/83—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups polycyclic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     4-Oxynaphtalin-l-arvlketons.       Es wurde gefunden, dass man ein     4-Oxy-          naphtalin-l-arylketon,    das     4-Oxynaphtalin-l-          (4'-chlor)-phenylketon,herstellen    kann, wenn  man die     4-Oxynaphtalin-1-(4'=chlor)-phenyl-          1;eton-3-,carbonsäure    auf höhere Temperatur,  vorzugsweise in Gegenwart eines Verdün  nungsmittels, erhitzt.

   Das so gewonnene     4-          Oxynaphta.Iin-1-(4'-chlor)-phenylketon    bildet  ein weisses Pulver, .das, aus Essigsäure umge  löst, bei 210'     ,schmilzt    und sich mit gelber  Farbe in Natronlauge löst.  



  <I>Beispiel l:</I>  100 Teile 4 -     Oxynaphtalin    -     1-(4'-chlor)-          phenylketon-3-carbonsäure    werden mit 100  Teilen     Dimethylanilin    auf 110 bis<B>150',</B> bis  zum Aufhören der     Kohlensäureentwicklung,     vorsichtig erwärmt. Beim Erkalten kristalli  siert das     4-Oxynaphtalin-1-(4'-chlor)-phenyl-          keton    aus. Zur vollständigen Reinigung kann  es noch aus Essigsäure umgelöst werden.  



  <I>Beispiel 2:</I>  100 Teile 4 -     Oxynaphtalin        -1-(4'-chlor)-          phenylketon-3-carbonsäure    werden mit 400  Teilen 5     %iger    Schwefelsäure in einem ge-         schlossenen    Gefäss auf<B>180'</B> bis<B>190'</B> er  wärmt. Das in fast reinem Zustand erhaltene       4-Oxynaphtalin-1-(4'-chlor)-phenylketonkann     noch aus Essigsäure umgelöst werden.



  Process for the preparation of 4-oxynaphthalene-1-arvlketone It has been found that a 4-oxynaphthalene-1-aryl ketone, 4-oxynaphthalene-1- (4'-chloro) -phenyl ketone, can be produced if 4-oxynaphthalene-1- (4 '= chlorine ) -phenyl- 1; eton-3-, carboxylic acid to a higher temperature, preferably in the presence of a diluent, heated.

   The 4-Oxynaphta.Iin-1- (4'-chloro) -phenylketone obtained in this way forms a white powder, which, when converted from acetic acid, melts at 210 'and dissolves in caustic soda with a yellow color.



  <I> Example 1: </I> 100 parts of 4 - oxynaphthalene - 1- (4'-chloro) - phenylketone-3-carboxylic acid are mixed with 100 parts of dimethylaniline to 110 to <B> 150 ', </B> to Cessation of carbonic acid development, carefully warmed up. On cooling, the 4-oxynaphthalene-1- (4'-chloro) -phenyl-ketone crystallizes out. Acetic acid can be used to make it completely clean.



  <I> Example 2: </I> 100 parts of 4-oxynaphthalene -1- (4'-chloro) - phenylketone-3-carboxylic acid are mixed with 400 parts of 5% sulfuric acid in a closed vessel to <B> 180 ' </B> to <B> 190 '</B> it warms. The 4-oxynaphthalene-1- (4'-chloro) -phenyl ketone obtained in an almost pure state can still be redissolved from acetic acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines 4-Oxy- naphtalin-l-arylketons, des 4-Oxynaphtalin- 1-(4'-chlor)-phenylketons, dadurch gekenn zeichnet, dass man die 4-Oxynaphtalin-1-(4'- chlor)-phenylketon-3-carbonsäure auf höhere Temperatur erhitzt. Das so gewonnene 4-Oxy- naphtalin-1-(4'-chlor)-phenylketon bildet ein weisses Pulver, das, aus Essigsäure umgelöst, bei 210' schmilzt und sich mit gelber Farbe in Natronlauge löst. PATENT CLAIM: Process for the production of a 4-oxynaphthalene-1-aryl ketone, 4-oxynaphthalene-1- (4'-chloro) -phenyl ketone, characterized in that the 4-oxynaphthalene-1- (4'-chloro ) -phenylketone-3-carboxylic acid heated to a higher temperature. The 4-oxynaphthalene-1- (4'-chloro) -phenyl ketone obtained in this way forms a white powder which, redissolved from acetic acid, melts at 210 ° and dissolves in caustic soda with a yellow color. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die 4-Oxy naphtalin- 1-(4'-chlor)-phenylketon - 3 - carbonsäure auf höhere Temperatur in Gegenwart eines Ver- dünnungsmittels erhitzt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the 4-oxynaphthalene-1- (4'-chloro) -phenylketone -3-carboxylic acid is heated to a higher temperature in the presence of a diluent.
CH100368D 1922-02-11 1922-02-11 Process for the preparation of a 4-oxynaphthalene-1-aryl ketone. CH100368A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH99520T 1922-02-11
CH100368T 1922-02-11

Publications (1)

Publication Number Publication Date
CH100368A true CH100368A (en) 1923-07-16

Family

ID=25705587

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100368D CH100368A (en) 1922-02-11 1922-02-11 Process for the preparation of a 4-oxynaphthalene-1-aryl ketone.

Country Status (1)

Country Link
CH (1) CH100368A (en)

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