CH255630A - Process for the preparation of an aromatic acylsulfonamide. - Google Patents
Process for the preparation of an aromatic acylsulfonamide.Info
- Publication number
- CH255630A CH255630A CH255630DA CH255630A CH 255630 A CH255630 A CH 255630A CH 255630D A CH255630D A CH 255630DA CH 255630 A CH255630 A CH 255630A
- Authority
- CH
- Switzerland
- Prior art keywords
- reaction
- act
- aromatic
- cinnamic acid
- dependent
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/15—Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/04—Sulfonic acids; Derivatives thereof
- A01N41/06—Sulfonic acid amides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Plant Pathology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
verfahren zur Herstellung eines aromatischen Acylsulfonamides. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines aromati schen Asylsulfonamides. Das Verfahren ist dadurch gekennzeichnet, da.ss man eine Ver- V)indung der Formel
EMI0001.0007
auf eine Verbindung der Formel
EMI0001.0008
worin X und Y zwei reaktionsfähige, bei der Reaktion mit Ausnahme einer in einem von ihnen enthaltenen NH-Gruppe sich abspal tende Reste bedeuten, einwirken lässt.
Die entstandene neue Verbindung, das N-(Cinnamoyl)-3,5-dichlor-benzolsulfonamid, schmilzt bei 160 und soll als Desinfektions mittel, z. B. für Gebrauchsgegenstände, Ver wendung finden.
Beispiel <I>1:</I> Teile 3,5-Dichlor-benzolsulfonamid werden in 100 Teilen Nitrobenzol suspen diert und mit 19 Teilen Aluminiumchlorid und 16,6 Teile Zimtsäurechlorid versetzt. Das Gemisch wird 2 Stunden auf 50 er wärmt und hierauf das Lösungsmittel mit Wasserdampf abdestilliert. Der Rückstand wird in Sodalösung aufgenommen, mit Tier kohle behandelt und filtriert. Aus dem El- trat wird das N-(Cinnamoyl)-3,5-dichlor- benzolsulfonamid mit Essigsäure ausgefällt und durch Umkristallisieren aus Alkohol gereinigt.
Statt unter Zuhilfenahme eines fionden- sationsmittels kann die Reaktion auch in Gegenwart eines säurebindenden Mittels, wie z. B. von Pyridin oder Dimethylanilin, oder in Gegenwart eines Katalysators, wie z. B. von Kupferpulver, ausgeführt werden.
An Stelle eines Halogenides kann auch die freie Zimtsäure in Gegenwart eines Kon densationsmittels, wie Phosphorpentogyd oder Phosphorpentachlorid, verwendet wer den.
Beispiel <I>2:</I> 24,8 Teile Zimtsäureamid werden in 200 Teilen absolutem Xylol gelöst.. Dann fügt man 8 Teile Natriumamid hinzu und er wärmt bis zum Aufhören der Ammoniak entwicklung.
Nach dem Abkühlen gibt man 49,1 Teile 3,5-Dichlor-benzolsulfochlorid in 100 Teilen Xylol zu und erhitzt mehrere Stunden unter Rückfluss. Nach beendeter Re aktion wird das Xylol im Vakuum abdestil- liert. Der Rückstand wird in Bicarbonat- lösung aufgenommen, mit Tierkohle behan delt, filtriert und durch Ansäuern ausgefällt.
Das N-(Cinnamoyl)-3,5-,dichlor-benzolsulfon- amid wird aus verdünntem Alkohol umkri- stallisiert und so völlig rein erhalten.
process for the production of an aromatic acylsulfonamide. The present patent is a process for the preparation of an aromatic rule asylsulfonamide. The process is characterized in that one uses the formula
EMI0001.0007
to a compound of the formula
EMI0001.0008
wherein X and Y mean two reactive radicals which split off during the reaction with the exception of an NH group contained in one of them.
The resulting new compound, the N- (cinnamoyl) -3,5-dichloro-benzenesulfonamide, melts at 160 and should be used as a disinfectant, eg. B. for everyday objects, Ver use.
Example 1: Parts of 3,5-dichlorobenzenesulfonamide are suspended in 100 parts of nitrobenzene, and 19 parts of aluminum chloride and 16.6 parts of cinnamic acid chloride are added. The mixture is heated to 50 for 2 hours and the solvent is then distilled off with steam. The residue is taken up in soda solution, treated with animal charcoal and filtered. The N- (cinnamoyl) -3,5-dichlorobenzenesulphonamide is precipitated from the eluate with acetic acid and purified by recrystallization from alcohol.
Instead of using a fioning agent, the reaction can also be carried out in the presence of an acid-binding agent, such as. B. of pyridine or dimethylaniline, or in the presence of a catalyst, such as. B. of copper powder.
Instead of a halide, the free cinnamic acid can also be used in the presence of a condensation agent such as phosphorus pentogide or phosphorus pentachloride.
Example <I> 2: </I> 24.8 parts of cinnamic acid amide are dissolved in 200 parts of absolute xylene. 8 parts of sodium amide are then added and it is warmed until the evolution of ammonia ceases.
After cooling, 49.1 parts of 3,5-dichlorobenzenesulfochloride in 100 parts of xylene are added and the mixture is refluxed for several hours. After the reaction has ended, the xylene is distilled off in vacuo. The residue is taken up in bicarbonate solution, treated with animal charcoal, filtered and precipitated by acidification.
The N- (cinnamoyl) -3,5-, dichlorobenzenesulfonamide is recrystallized from dilute alcohol and thus obtained completely pure.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH249867T | 1944-10-25 | ||
CH255630T | 1944-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH255630A true CH255630A (en) | 1948-06-30 |
Family
ID=25729406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH255630D CH255630A (en) | 1944-10-25 | 1944-10-25 | Process for the preparation of an aromatic acylsulfonamide. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH255630A (en) |
-
1944
- 1944-10-25 CH CH255630D patent/CH255630A/en unknown
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