CH100369A - 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
CH100369A
CH100369A CH100369DA CH100369A CH 100369 A CH100369 A CH 100369A CH 100369D A CH100369D A CH 100369DA CH 100369 A CH100369 A CH 100369A
Authority
CH
Switzerland
Prior art keywords
oxynaphthalene
dichloro
preparation
aryl ketone
phenyl ketone
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 CH100369A publication Critical patent/CH100369A/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-arylketons.       Es wurde gefunden,     dass    man ein     4-Oxy-          naphtalin-l-arylketon,    das     4-Oxynaphtalin-          1-(2',4'-dichlor)-phenylketon,    herstellen kann,  wenn man die     4-Oxynaphtalin-1-(2',4'-di-          elilor)-phenylketon-3-carbonsäure    auf höhere  Temperatur, vorzugsweise in Gegenwart eines  Verdünnungsmittels, erhitzt.

   Das so gewon  nene     4-Oxynaphtalin-1-(2',4'-clichlor)-phenyl-          hr_#ton    bildet ein weisses Pulver, das, aus       Essigsäure    umgelöst, bei 222' schmilzt und  sich mit gelber Farbe in Natronlauge löst.  <I>Beispiel 1:</I>  100 Teile     4-Oxynaphtalin-1-(2',4'-dichlor)-          phcny        lketon-3-.carbonsäure    - werden mit<B>-100</B>  Teilen     Dimethylanilin    auf<B>110'</B> bis<B>150',</B> bis  zum Aufhören der     Kohlensäureentwicklung,     vorsichtig erwärmt. Beim Erkalten kristal  lisiert das     4-Oxynaphtalin-1-(2',4'-dichlor)-          pheny1keton    aus.

   Zur vollständigen Reini  gung kann es noch .aus Essigsäure umgelöst  werden.  



  <I>Beispiel</I>  100 Teile     4-Oxynaphtalin-1-(2',4'-dichlor)-          phenylli:eton-3-carbonsäure    werden mit 400  Teilen 5     %iger    Schwefelsäure in einem ge-         schlossenen    Gefäss auf 180   bis 190   erwärmt.  Das in fast reinem Zustand erhaltene     4-Oxy-,          naphtalin-1-(2',4'-dichlor)-phenylketon    kann  noch aus Essigsäure umgelöst werden.



  Process for the preparation of 4-oxynaphthalene-1-aryl ketone. It has been found that a 4-oxynaphthalene-1-aryl ketone, 4-oxynaphthalene-1- (2 ', 4'-dichloro) -phenyl ketone, can be produced if 4-oxynaphthalene-1- (2 ', 4'-di- elilor) -phenylketone-3-carboxylic acid to a higher temperature, preferably in the presence of a diluent, heated.

   The 4-oxynaphthalene-1- (2 ', 4'-clichlor) -phenyl-hr_ # ton obtained in this way forms a white powder which, when dissolved from acetic acid, melts at 222' and dissolves in caustic soda with a yellow color. <I> Example 1: </I> 100 parts of 4-oxynaphthalene-1- (2 ', 4'-dichloro) - phcny lketone-3-carboxylic acid - are made up with <B> -100 </B> parts of dimethylaniline <B> 110 '</B> to <B> 150' </B> until the carbonation stops, carefully heated. On cooling, the 4-oxynaphthalene-1- (2 ', 4'-dichloro) phenyl ketone crystallizes out.

   For complete cleaning, it can also be converted from acetic acid.



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

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines 4-Oxy- n.aphtalin-l-arylketons, .des 4-Oxynaphtalin- 1-(2',4'-dichlor)-phenylketons, dadurch ge- kennzeichnet, dass man die 4-Oxynaphtalin- 1- (2',4'-dichlor) - phenylketon - 3 - carbonsäure auf höhere Temperatur erhitzt. PATENT CLAIM Process for the production of a 4-oxynaphthalene-1-aryl ketone, .des 4-oxynaphthalene-1- (2 ', 4'-dichloro) -phenyl ketone, characterized in that the 4-oxynaphthalene-1 - (2 ', 4'-dichloro) - phenyl ketone - 3 - carboxylic acid heated to a higher temperature. Das so ge wonnene 4-Oxynaphtalin-1-(2',4'-dichlor)- phenylketon bildet ein weisses Pulver, .das., aus Essigsäure umgelöst, bei 222' schmilzt und sich mit gelber Farbe in Natronlauge löst. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die 4-Oxynaphtalin- 1 - (2',4'-dichlor)-phenylketon-3-,carbonsä ure auf höhere Temperatur in Gegenwart eines Verdünnungsmittels erhitzt. The 4-oxynaphthalene-1- (2 ', 4'-dichloro) phenyl ketone thus obtained forms a white powder, which, when redissolved from acetic acid, melts at 222' and dissolves in caustic soda with a yellow color. SUBSTANTIAL CLAIM: Process according to claim, characterized in that the 4-oxynaphthalene-1- (2 ', 4'-dichloro) -phenylketone-3-carboxylic acid is heated to a higher temperature in the presence of a diluent.
CH100369D 1922-02-11 1922-02-11 Process for the preparation of a 4-oxynaphthalene-1-aryl ketone. CH100369A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100369T 1922-02-11
CH99520T 1922-02-11

Publications (1)

Publication Number Publication Date
CH100369A true CH100369A (en) 1923-07-16

Family

ID=25705588

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100369D CH100369A (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) CH100369A (en)

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