CH100370A - 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
CH100370A
CH100370A CH100370DA CH100370A CH 100370 A CH100370 A CH 100370A CH 100370D A CH100370D A CH 100370DA CH 100370 A CH100370 A CH 100370A
Authority
CH
Switzerland
Prior art keywords
ketone
oxy
chloro
oxynaphthalene
preparation
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 CH100370A publication Critical patent/CH100370A/en

Links

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

Landscapes

  • 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 befunden, dass man ein     4-Oxy-          naphtalin-l-arylketon,das        1-Chlor-4'oxy-2,1'-          dinaphtylketon,    herstellen kann, wenn man  die     1-Chlor-2,1'-dinaphtylketon-4'-oxy-3'-car-          bonsäure    auf höhere Temperatur, vorzugs  weise in Gegenwart eines Verdünnungs  mittels, erhitzt. Das so gewonnene     1-Chlor-          4'-oxy-2,1'-dinaphtylketon    bildet ein weisses  Pulver, das, aus Essigsäure umgelöst, bei  213  schmilzt und sich mit gelber Farbe in  Natronlauge löst.  



  Beispiel:  100 Teile     1-Chlor-2,1'-dinaphtylketon-4'-          oxy-3'-carbonsäure    werden mit 40(l Teilen  5%iger Schwefelsäure in einem geschlos  senen Gefäss auf 180' bis 190' erwärmt. Das  in fast reinem Zustand erhaltene     1-Chlor-4'-          oxy-2,1'-dinaphtylketon    kann noch aus Essig  säure umgelöst werden.



  Process for the preparation of 4-oxynaphthalene-1-aryl ketone. It has been found that a 4-oxynaphthalene-1-aryl ketone, the 1-chloro-4'oxy-2,1'-dinaphtyl ketone, can be prepared by using the 1-chloro-2,1'-dinaphtyl ketone 4'-oxy-3'-carboxylic acid is heated to a higher temperature, preferably in the presence of a diluent. The 1-chloro-4'-oxy-2,1'-dinaphthyl ketone obtained in this way forms a white powder which, redissolved from acetic acid, melts at 213 and dissolves in caustic soda with a yellow color.



  Example: 100 parts of 1-chloro-2,1'-dinaphthyl ketone-4'-oxy-3'-carboxylic acid are heated to 180 'to 190' with 40 (1 parts of 5% sulfuric acid in a closed vessel 1-chloro-4'-oxy-2,1'-dinaphtyl ketone obtained in the pure state can still be redissolved from acetic acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines 4-Oxy- naphtalin-l-arylketons, des 1-Chlor-4'-oxy- 2,1'-dinaphtylketons, dadurch gekennzeichnet, dass man die 1-Chlor-2,1'-dinaphtylketon-4'- oxy-3'-carbonsäure auf höhere Temperatur er hitzt. Das so gewonnene 1-Chlor-4'-oxy-2,1'- dinaphtylketon bildet ein weisses Pulver, das, aus Essigsäure umgelöst, bei 213' schmilzt und sich mit gelber Farbe in Natronlauge löst. PATENT CLAIM: Process for the production of a 4-oxynaphthalene-1-aryl ketone, the 1-chloro-4'-oxy-2,1'-dinaphtyl ketone, characterized in that the 1-chloro-2,1'-dinaphtyl ketone is 4'-oxy-3'-carboxylic acid is heated to a higher temperature. The 1-chloro-4'-oxy-2,1'-dinaphthyl ketone obtained in this way forms a white powder which, redissolved from acetic acid, melts at 213 'and dissolves in caustic soda with a yellow color. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch g e kennzeichnet, dass man die 1-Chlor-2,1'-di- naphtylketori-4'-oxy-3'-carbonsäure aufhöhere Temperatur in Gegenwart eines Verdünnungs mittels erhitzt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the 1-chloro-2,1'-di-naphthylketori-4'-oxy-3'-carboxylic acid is heated to a higher temperature in the presence of a diluent.
CH100370D 1922-02-11 1922-02-11 Process for the preparation of a 4-oxynaphthalene-1-aryl ketone. CH100370A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH99520T 1922-02-11
CH100370T 1922-02-11

Publications (1)

Publication Number Publication Date
CH100370A true CH100370A (en) 1923-07-16

Family

ID=25705589

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100370D CH100370A (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) CH100370A (en)

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