AT114032B - Process for the preparation of di-w-haloacylated diphenyl ethers. - Google Patents

Process for the preparation of di-w-haloacylated diphenyl ethers.

Info

Publication number
AT114032B
AT114032B AT114032DA AT114032B AT 114032 B AT114032 B AT 114032B AT 114032D A AT114032D A AT 114032DA AT 114032 B AT114032 B AT 114032B
Authority
AT
Austria
Prior art keywords
preparation
haloacylated
diphenyl ethers
ether
chloride
Prior art date
Application number
Other languages
German (de)
Original Assignee
Schering Kahlbaum Ag
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 Schering Kahlbaum Ag filed Critical Schering Kahlbaum Ag
Application granted granted Critical
Publication of AT114032B publication Critical patent/AT114032B/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von   di-#-halogenacylierten Diphenyläthern.   



   Es ist bekannt, dass bei Einwirkung von   Acetylchlorid   oder   Benzoyclorid   auf Diphenyläther [B. 38 III (1905] 2490) Phenoxyaeetophenon bzw. Phenoxybenzophenon entsteht. Es wurde nunmehr gefunden, dass unter besonderen Bedingungen sich   überraschenderweise   auch die o-halogenierten Phenoxyacetophenone bzw. ihre   Substitutionsprodukte durch   Einwirkung von halogenierten Aeylhalogeniden darstellen lassen. Die Entstehung dieser Verbindungen ist um so überraschender, als nach der zitierten Literaturstelle sich z.

   B. aus Acetylchlorid und Diphenyläther nur das Phenoxyacetophenon darstellen lässt, während bei Anwendung von halogenierten   Acylchloriden   sich vorzugsweise diacylierte Diphenyläther bilden und nur bei Einhaltung von ganz besonderen Bedingungen die monoacylierten Verbindungen entstehen. Die Verbindungen sind gut kristallinisch und bilden Zwischenprodukte für therapeutisch hochwirksame Substanzen, die man erhält, wenn man die leicht ersetzbaren   M-Halogen-   atome z. B. gegen   NH3   oder Amine austauscht. 



   Beispiel 1 : Man lässt zu 23 g fein gepulvertem Aluminiumehlorid ein Gemisch von 10 g Diphenyl- äther und 10 g   Chloracetylchlorid   bei Zimmertemperatur zutropfen. Die entstandene Aluminiumchlorid-Doppelverbndung wird mit Eis zerlegt und das ausfallende Harz aus Alkohol umkristallisiert. 



  Die neue Verbindung ist ein dichloracetylierter   Diphenyläther   vom   Schmelzpunkt 102  folgender   Zusammensetzung : 
 EMI1.1 
 Beispiel 2 : Zu 23 g fein gepulvertem Aluminiumbromid lässt man ein Gemisch von 10   g   Di- 
 EMI1.2 
 produkt mit Eis und kristallisiert das ausfallende Harz aus Alkohol um. Die Verbindung ist ein dibromacetylierter Diphenyläther und stellt ein graues Kristallpulver vom Schmelzpunkt   121'dar.'  
Beispiel 3 : 10 g o-Methoxydiphenyläther werden mit 10 g Aluminiumchlorid gemischt und bei Zimmertemperatur 8-5   5 g Chloracetylchlorid   eingetragen.

   Die   Aluminiumchlorid-Doppel-   verbindung wird wie oben zerlegt und der erhaltene   dicloracetylierte   o-Methoxydiphenyläther der Strukturformel 
 EMI1.3 
 (Schmelzpunkt 148 ) durch Verseifen mit Aluminiumchlorid in einem indifferenten Lösungsmittel, sodann durch Zerlegen des Reaktionsproduktes mit Eis und Umkristallisieren aus verdünntem Alkohol in den dichloracetylierten o-Oxydiphenyläther umgewandelt, der weisse Nädelehen vom Schmelzpunkt   1580 bildet.   Lässt man auf diese Verbindung Methylamin einwirken, so entsteht das entsprechende Amin, dessen Chlorhydrat ein farbloses, in Wasser leicht   lösliches   kristallinisches Pulver bildet. 



   Beispiel 4 : Zu 20 g feingepulvertem Aluminiumchlorid lässt man ein Gemisch von 10 g p-Methoxydiphenyläther und 9 g Chloracetylchlorid bei Zimmertemperatur zutropfen, zerlegt das Reaktionsprodukt mit Eis, kristallisiert das ausfallende Harz aus Alkohol um. Man erhält weisse   Nädelchen   vom Schmelzpunkt 155 , die den Di-(chloracetyl)-p-oxydiphenyläther darstellen. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of di - # - haloacylated diphenyl ethers.



   It is known that upon the action of acetyl chloride or benzoyl chloride on diphenyl ether [B. 38 III (1905] 2490) Phenoxyaeetophenon or Phenoxybenzophenon is formed. It has now been found that, under special conditions, surprisingly, the o-halogenated phenoxyacetophenones or their substitution products can also be prepared by the action of halogenated alkyl halides. The formation of these compounds is all the more surprising as, according to the cited literature, e.g.

   B. from acetyl chloride and diphenyl ether can only represent the phenoxyacetophenone, while when using halogenated acyl chlorides preferably diacylated diphenyl ethers are formed and the monoacylated compounds are only formed if very special conditions are met. The compounds have good crystalline properties and form intermediates for therapeutically highly effective substances that are obtained when the easily replaceable M halogen atoms are used, for example. B. exchanged for NH3 or amines.



   Example 1: A mixture of 10 g of diphenyl ether and 10 g of chloroacetyl chloride is added dropwise to 23 g of finely powdered aluminum chloride at room temperature. The resulting aluminum chloride double compound is broken down with ice and the precipitating resin is recrystallized from alcohol.



  The new compound is a dichloroacetylated diphenyl ether with a melting point of 102 with the following composition:
 EMI1.1
 Example 2: To 23 g of finely powdered aluminum bromide, a mixture of 10 g of di-
 EMI1.2
 product with ice and the precipitating resin crystallizes from alcohol. The compound is a dibromoacetylated diphenyl ether and is a gray crystal powder with a melting point of 121 '.
Example 3: 10 g of o-methoxydiphenyl ether are mixed with 10 g of aluminum chloride and 8-5 g of chloroacetyl chloride are added at room temperature.

   The aluminum chloride double compound is broken down as above and the resulting dicloroacetylated o-methoxydiphenyl ether of the structural formula
 EMI1.3
 (Melting point 148) by saponification with aluminum chloride in an inert solvent, then converted into the dichloroacetylated o-oxydiphenyl ether by decomposing the reaction product with ice and recrystallization from dilute alcohol, which forms white needle loops with a melting point of 1580. If methylamine is allowed to act on this compound, the corresponding amine is formed, the chlorohydrate of which forms a colorless crystalline powder that is easily soluble in water.



   Example 4: A mixture of 10 g of p-methoxydiphenyl ether and 9 g of chloroacetyl chloride is added dropwise to 20 g of finely powdered aluminum chloride at room temperature, the reaction product is broken down with ice and the resin which precipitates out is recrystallized from alcohol. White needles with a melting point of 155 are obtained which represent the di (chloroacetyl) p-oxydiphenyl ether.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von di-#-halogenacylierten Diphenyläthern, dadurch gekennzeichnet, dass man Chlor- bzw. Bromacetylchlorid auf Diphenyläther und dessen Substitutionsprodukte ein- wirken lässt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of di - # - halogenacylated diphenyl ethers, characterized in that chlorine or bromoacetyl chloride is allowed to act on diphenyl ether and its substitution products. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT114032D 1927-03-09 1928-02-01 Process for the preparation of di-w-haloacylated diphenyl ethers. AT114032B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE114032X 1927-03-09

Publications (1)

Publication Number Publication Date
AT114032B true AT114032B (en) 1929-08-26

Family

ID=5653628

Family Applications (1)

Application Number Title Priority Date Filing Date
AT114032D AT114032B (en) 1927-03-09 1928-02-01 Process for the preparation of di-w-haloacylated diphenyl ethers.

Country Status (1)

Country Link
AT (1) AT114032B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150187A (en) * 1960-02-10 1964-09-22 Francesco Vismra S P A Aryl dihalogenacetyl derivatives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150187A (en) * 1960-02-10 1964-09-22 Francesco Vismra S P A Aryl dihalogenacetyl derivatives

Similar Documents

Publication Publication Date Title
AT114032B (en) Process for the preparation of di-w-haloacylated diphenyl ethers.
DE492321C (en) Process for the preparation of bis-ªÏ-haloacetylated diphenyl ethers
AT125233B (en) Process for the preparation of salt-like compounds from higher homologues of polyoxybenzenes.
DE857956C (en) Process for the production of fluorine-containing olefins
DE894994C (en) Process for the production of aliphatic mercury ketone compounds
DE614703C (en) Process for the preparation of 1- (3, 4, 5-trialkoxyphenyl) -6, 7-dialkoxyisoquinolines
AT93320B (en) Process for the preparation of an ester of trichloroethyl alcohol.
AT117475B (en) Process for the preparation of substitution products of ß-iodopyridine.
DE392067C (en) Process for the preparation of N-aralkylated imidazolylalkylamines
DE878204C (en) Process for the preparation of basic substituted phenylacetamides
DE907650C (en) Process for the preparation of iso-1, 2-diaryl-ethanol- (1) -amines- (2)
DE1468167B2 (en) BASIC ESTERS OF BICYCLIC DICARBONIC ACIDS, THEIR ACID ADDITIONAL SALTS AND BISQUATERNAL AMMONIUM COMPOUNDS, AND PROCESS FOR THE PREPARATION OF THE SAME
DE607116C (en) Process for the preparation of compounds of the hydrouracil series
AT237606B (en) Process for the preparation of the new N- (4-diethylaminobutyl) salicylic acid amide, its O-acyl derivatives and the salts of these basic amides
AT225856B (en) Process for the production of new halides of the lysergic acid and dihydrolysergic acid series
AT231439B (en) Process for the preparation of new o-alkoxybenzoic acid aminoalkylamides
AT379375B (en) METHOD FOR PRODUCING THE NEW 1-CHLORINE-3,5,7-TRIMETHYL-2,6-OCTADIENE
AT222653B (en) Process for the production of new azepine derivatives
DE959015C (en) Process for the preparation of new pharmacologically active basic esters and their salts
CH94567A (en) Process for the preparation of 3,6-diamino-9-benzyl-10-methyldihydroacridine.
DE1215696B (en) Process for the preparation of 3, 4, 5-trimethoxy-benzamides and 3, 4, 5-trimethoxy-cinnamic acid amides
DE1156814B (en) Process for the preparation of ª-morpholino-fatty acid anilides
CH441296A (en) Process for the production of camphor derivatives
CH449012A (en) Process for the production of choline nicotinate and choline ester nicotinates
CH300822A (en) Process for the preparation of a new trypanozid active compound.