CH205065A - Process for the preparation of terephthaloyl 1- (2 ', 4'-dichloroanilide) -4-chloride. - Google Patents
Process for the preparation of terephthaloyl 1- (2 ', 4'-dichloroanilide) -4-chloride.Info
- Publication number
- CH205065A CH205065A CH205065DA CH205065A CH 205065 A CH205065 A CH 205065A CH 205065D A CH205065D A CH 205065DA CH 205065 A CH205065 A CH 205065A
- Authority
- CH
- Switzerland
- Prior art keywords
- chloride
- terephthaloyl
- dichloroanilide
- preparation
- mole
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Ter ephthaloyl-1-(2',4'-dichlor anilid)-4-chlorid. Gegenstand des vorliegenden Zusatzpaten- tes ist ein Verfahren zur Herstellung von Terephthaloyl - 1 - (2',4'- diehloranilid) - 4 - chlorid, welches dadurch gekennzeichnet ist,
.dass man auf ein Mol Terephthaloylchlorid in Gegenwart von organischen Lösungsmitteln, ,die nicht mit den Säurehalogentidgruppen reagieren, ein Mol 2;4-Dichloranilin in Form seines mineralsauren Salzes einwirken lässt.
Die so erhaltene, bisher nicht bekannte Verbindung soll als Zwischenprodukt für die Herstellung von Farbstoffen, pharmazeuti schen Produkten und Textilhilfsmitteln Ver- wendung finden.
<I>Beispiel:</I> 112 Gewichtsteile Terephthaloylohlorid werden in 600 Volumteil_en Aceton gelöst, und bei 5;0--55 C werden 99 Gewichtsteile Salzsäure 2,4-Dichloranilineingetragen, wor auf bis zur beginnenden Bildung von Tere- phthaloyl--di-(2,4-.dichloranilid) zum Sieden erhitzt wird..
Hierauf wird sofort filtriert und durch starkes Abkühlen das Temphthaloyl-l- (2',4'-dichloranilid)--4,1chlorid abgeschieden. Das abgesaugte und mit kaltem Aceton .ge- waschene Produkt wird im Vakuum bei Zim- mertemperatur .getrocknet. Durch Einengen .der Mutterlauge und anschliessendes Abküh len werden weitere Mengen der Verbindung erhalten.
An Stelle von. Aceton als Lösungsmittel können andere getane, wie Methyläthylketon oder Diäthylketon, sowie Kohlenwasserstoffe, wie Benzol und Xylol, allein oder in Mi schung mit Aden bereits erwähnten Betonen, ferner auch Dioxan verwendet werden.
Die erhaltene, bisher nicht bekannte Ver bindung bildet farblose Kristalle, die bei 1'40 C schmelzen.
Process for the preparation of Ter ephthaloyl-1- (2 ', 4'-dichloro anilide) -4-chloride. The subject of the present additional patent is a process for the production of terephthaloyl - 1 - (2 ', 4'-diehloranilid) - 4 - chloride, which is characterized by
.that one mole of terephthaloyl chloride in the presence of organic solvents, which do not react with the acid halide groups, allows one mole of 2,4-dichloroaniline to act in the form of its mineral acid salt.
The compound obtained in this way and not previously known is intended to be used as an intermediate for the production of dyes, pharmaceutical products and textile auxiliaries.
<I> Example: </I> 112 parts by weight of terephthaloylochloride are dissolved in 600 parts by volume of acetone, and at 5; 0-55 ° C. 99 parts by weight of hydrochloric acid 2,4-dichloroaniline are introduced, which leads to the formation of terephthaloyl-- di- (2,4-dichloroanilide) is heated to boiling.
It is then filtered immediately and the temphthaloyl-1- (2 ', 4'-dichloroanilide) -4.1 chloride is deposited by vigorous cooling. The product, which has been suctioned off and washed with cold acetone, is dried in vacuo at room temperature. Concentration of the mother liquor and subsequent cooling give further amounts of the compound.
Instead of. Acetone as a solvent, other done, such as methyl ethyl ketone or diethyl ketone, and hydrocarbons such as benzene and xylene, alone or mixed with adene already mentioned concretes, also dioxane can be used.
The compound obtained, previously unknown, forms colorless crystals that melt at 1.40 ° C.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE205065X | 1936-12-23 | ||
CH201953T | 1937-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH205065A true CH205065A (en) | 1939-05-31 |
Family
ID=25723756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH205065D CH205065A (en) | 1936-12-23 | 1937-12-13 | Process for the preparation of terephthaloyl 1- (2 ', 4'-dichloroanilide) -4-chloride. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH205065A (en) |
-
1937
- 1937-12-13 CH CH205065D patent/CH205065A/en unknown
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