CH239151A - Process for the production of a new benzene sulfonamide derivative. - Google Patents
Process for the production of a new benzene sulfonamide derivative.Info
- Publication number
- CH239151A CH239151A CH239151DA CH239151A CH 239151 A CH239151 A CH 239151A CH 239151D A CH239151D A CH 239151DA CH 239151 A CH239151 A CH 239151A
- Authority
- CH
- Switzerland
- Prior art keywords
- ethyl
- production
- amino
- benzene sulfonamide
- sulfonamide derivative
- Prior art date
Links
- 150000008331 benzenesulfonamides Chemical class 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- -1 p-amino-benzenesulfonamido Chemical group 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 239000013067 intermediate product Substances 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- FMOFVIFWMKOSNN-UHFFFAOYSA-N CCSC(C=C1)=NN1N Chemical compound CCSC(C=C1)=NN1N FMOFVIFWMKOSNN-UHFFFAOYSA-N 0.000 description 2
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- GRDXCFKBQWDAJH-UHFFFAOYSA-N 4-acetamidobenzenesulfonyl chloride Chemical compound CC(=O)NC1=CC=C(S(Cl)(=O)=O)C=C1 GRDXCFKBQWDAJH-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BRWIZMBXBAOCCF-UHFFFAOYSA-N hydrazinecarbothioamide Chemical compound NNC(N)=S BRWIZMBXBAOCCF-UHFFFAOYSA-N 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- RZWZRACFZGVKFM-UHFFFAOYSA-N propanoyl chloride Chemical compound CCC(Cl)=O RZWZRACFZGVKFM-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical class NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 125000000565 sulfonamide group Chemical group 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
- C07D285/01—Five-membered rings
- C07D285/02—Thiadiazoles; Hydrogenated thiadiazoles
- C07D285/04—Thiadiazoles; Hydrogenated thiadiazoles not condensed with other rings
- C07D285/12—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles
- C07D285/125—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical
- C07D285/135—Nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Benzol-sulfonamidderivates. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines neuen Benzolsulfonamidderivates, das dadurch ge kennzeichnet ist, dass man ein 2-Benzolsul- fondamido-5-äthyl-thiodiazol-(1,3,4), das in p-Stellung einen durch Hydrolyse in die Aminogruppe überführbaren Substituenten aufweist, mit einem hydrolysierenden Mittel behandelt.
Das so erhaltene 2-(p-Amino-benzolsul- fonamido) - 5 - äthyl-thiodiazol-(1,3,4) bildet farblose Nadeln vom F. 184-185 . Die neue Verbindung soll als Arzneimittel sowie als Zwischenprodukt Verwendung finden.
Das 2 -Benzolsulfonamido - 5 - äthyl-thio- diazol-(1,3,4), das in p-Stellung zur Sulfon- amidgruppe einen. durch Hydrolyse in die Aminogruppe überführbaren Substituenten enthält, kann auf verschiedene Art und Weise gewonnen werden.
Besonders geeignet ist die Umsetzung der entsprechenden reak tionsfähigen Benzolsulfonsäurederivate, ins besondere der Benzolsulfonsäurehalogenide, mit 5-Äthyl-tbiodiazol-(1,3,4)-verbindungen, die in 2-Stellung eine Gruppe enthalten, die mit dem Benzolsulfonsäurederivat ein 2-Ben- zolsulfonamido-5-äthyl-thiodiazol-(1,3,4) zu bilden vermag, wie mit 2-Amino-5-äthylthio- diazol-(1,3,4). Man kann auch entsprechende Sulfonamide der Formel R.S02NHY,
in der Y einen bei der nachfolgenden Reaktion sich abspaltenden Rest bedeutet, mit 2-Halogen- 5-äthyl-thiodiazolen-(1,3,4) umsetzen. Auch können andere dem Fachmann geläufige Her stellungsmethoden benutzt werden.
<I>Beispiel</I> 26,4 g p-Carbäthogyamino-benzolsulfo- chlorid werden mit 12,9 g 2-Amino-5-äthyl- thiodiazol-(1,3,4) (F. 195-196 C; herge stellt durch Einwirkung von Propionyl- chlorid auf Thiosemicarbazid) und 50<B>cm'</B> Pyridin zusammengebracht, wobei sich die Mischung stark erwärmt.
Zur Beendigung der Reaktion wird noch eine Stunde auf dem Wasserbad erwärmt und die abgekühlte Lö- sung mit dem sechsfachen Volumen Wasser verdünnt. Die erhaltene Fällung wird ab gesaugt und mit verdünnter Salzsäure und Wasser ausgewaschen. Die aus Alkohol um kristallisierte Carbäthoxyverbindung schmilzt bei 205 C.
Zur Abspaltung der Carbäthoxy- gruppe wird das Produkt mit .200 cm' einer zweifach normalen Natronlauge 30 Minuten auf dem Wasserbad erhitzt und aus der Lö sung durch Ansäuern mit Essigsäure das 2-(p-Amino-benzolsulfonamido)-5-äthyl-tliio- diazol-.(1,3,4) ausgefällt. Die Reinigung er folgt durch Umkristallisieren aus verdünn tem Alkohol. Das Produkt bildet farblose Nadeln vom F. 184-185 C. Die Ausbeute beträgt 75,120' der Theorie.
Das gebildete p-Aminobenzolsulfonamid- derivat lässt sich auch in Form seiner Salze, z. B. des Natriums oder des Calciums, isolieren.
Beispiel <I>2:</I> Zu einer Suspension von 1 Mol 2-Amino- 5-äthyl-thiodiazol-(1,3,4) in 300 cm.:; Pyridin wird 1 Mol p-Acetylamino-benzolsulfochlorid hinzugegeben, wobei unter Erwärmung die beiden Substanzen in Lösung gehen. Zur Be endigung der Reaktion wird eine Stunde auf dem Wasserbade erhitzt.
Nach dem Erkalten wird zu der Pyridinlösung ein Liter Wasser zugegeben und - das Reaktionsprodukt mit 500 cm' 2n-Salzsäure ausgefällt; das Fäl- lungsprodukt wird abgesaugt, mit Wasser ausgewaschen und zur Abspaltung der Acetylgruppe in 500 cm' 2n-Salzsäure 2 Stunden auf dem Wasserbade erhitzt. Nach dem Erkalten wird unter Eiskühlung das 2-(p-Amino-benzolsulfonamido)-5-äthyl-thio- diazol-(1,3,4) durch Abstumpfen der Salz säure mit Natriumacetat ausgefällt.
Schmelzpunkt 184 C (Prismen aus Athyl- alkoliol).
<I>Beispiel 3:</I> <B>12,9</B> g 2-Amino-5-äthyl-thiodiazol-(1,3,4) werden in 25 um' Pyridin aufgenommen und unter Rühren allmählich mit 23,5 g p-Acetyl- amiiio-benzolsulfochlorid versetzt. Hierauf wird noch eine Stunde auf 95 erhitzt. Durch hingiessen der erhaltenen Lösung in Eis wasser wird das Kondensationsprodukt in fester Form erhalten. Es wird abgesogen und durch Kochen in verdünnter Natronlauge verseift.
Das mit Essigsäure ausgefällte 2-(p-Amino-k)enzolsulfonamido)-5-äthyl-thio- diazol-(1,3,4) hat nach dem Umkristallisie- ren aus wässerigem Alkohol den F. 184 . Die Hydrolyse kann man auch mit an dern alkalischen Mitteln, beispielsweise Erd- alka:lihydroxyden, wie Calciumhydroxyd, oder mit sauren Mitteln, z. B. Salzsäure, in Gegenwart von Wasser oder organischen Lösungsmitteln, wie Alkohol, durchführen.
Process for the production of a new benzene sulfonamide derivative. The subject of the present patent is a process for the preparation of a new benzenesulfonamide derivative, which is characterized in that a 2-benzenesulfondamido-5-ethyl-thiodiazole- (1,3,4) which is in the p-position by hydrolysis Has convertible into the amino group substituents, treated with a hydrolyzing agent.
The 2- (p-amino-benzenesulfonamido) -5-ethyl-thiodiazole- (1,3,4) obtained in this way forms colorless needles with a mp of 184-185. The new compound is to be used as a drug and as an intermediate product.
The 2 -Benzolsulfonamido - 5 - ethyl-thio-diazole (1,3,4), which is in the p-position to the sulfonamide group. contains substituents which can be converted into the amino group by hydrolysis, can be obtained in various ways.
The reaction of the corresponding reactive benzenesulfonic acid derivatives, in particular the benzenesulfonic acid halides, with 5-ethyl-tbiodiazole- (1,3,4) compounds which contain a group in the 2-position which is 2-ben with the benzenesulfonic acid derivative is particularly suitable - Zolsulfonamido-5-ethyl-thiodiazole (1,3,4) is able to form, as with 2-amino-5-ethylthiodiazole (1,3,4). You can also use corresponding sulfonamides of the formula R.S02NHY,
in which Y denotes a radical which is split off in the subsequent reaction, with 2-halo-5-ethyl-thiodiazolen- (1,3,4). Other production methods familiar to the person skilled in the art can also be used.
<I> Example </I> 26.4 g of p-carbethogyamino-benzenesulfochloride are mixed with 12.9 g of 2-amino-5-ethylthiodiazole (1,3,4) (mp 195-196 C; produced by the action of propionyl chloride on thiosemicarbazide) and 50 <B> cm '</B> pyridine, whereby the mixture heats up strongly.
To end the reaction, the mixture is heated on the water bath for a further hour and the cooled solution is diluted with six times the volume of water. The precipitate obtained is filtered off with suction and washed out with dilute hydrochloric acid and water. The carbethoxy compound crystallized from alcohol melts at 205 C.
To split off the carbethoxy group, the product is heated on a water bath for 30 minutes with 200 cm 'of twice normal sodium hydroxide solution, and 2- (p-amino-benzenesulfonamido) -5-ethyl-tliio- is obtained from the solution by acidification with acetic acid. diazole -. (1,3,4) precipitated. It is cleaned by recrystallization from dilute alcohol. The product forms colorless needles with a temperature of 184-185 C. The yield is 75.120% of theory.
The p-aminobenzenesulfonamide derivative formed can also be used in the form of its salts, e.g. B. of sodium or calcium isolate.
Example <I> 2: </I> To a suspension of 1 mol of 2-amino-5-ethyl-thiodiazole- (1,3,4) in 300 cm.:; 1 mol of p-acetylamino-benzenesulfochloride is added to pyridine, the two substances dissolving when heated. To end the reaction, the mixture is heated on the water bath for one hour.
After cooling, one liter of water is added to the pyridine solution and the reaction product is precipitated with 500 cm of 2N hydrochloric acid; the precipitate is filtered off with suction, washed out with water and heated on a water bath for 2 hours in 500 cm 2N hydrochloric acid in order to split off the acetyl group. After cooling, the 2- (p-amino-benzenesulfonamido) -5-ethyl-thio- diazole (1,3,4) is precipitated by truncating the hydrochloric acid with sodium acetate.
Melting point 184 C (prisms made from ethyl alcohol).
<I> Example 3: </I> <B> 12.9 </B> g of 2-amino-5-ethyl-thiodiazole- (1,3,4) are taken up in 25 μm pyridine and gradually added with stirring 23.5 g of p-acetyl-amiiio-benzenesulfochloride were added. This is followed by heating to 95 for another hour. The condensation product is obtained in solid form by pouring the resulting solution into ice water. It is suctioned off and saponified by boiling in dilute sodium hydroxide solution.
The 2- (p-amino-k) enzenesulfonamido) -5-ethyl-thiodiazole- (1,3,4) precipitated with acetic acid has a melting point of 184 after recrystallization from aqueous alcohol. The hydrolysis can also be carried out with other alkaline agents, for example Erd- alka: lihydroxyden, such as calcium hydroxide, or with acidic agents such. B. hydrochloric acid, in the presence of water or organic solvents such as alcohol.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE239153X | 1939-11-23 | ||
| DE239151X | 1939-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH239151A true CH239151A (en) | 1945-09-15 |
Family
ID=32963233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH239151D CH239151A (en) | 1939-11-23 | 1940-11-22 | Process for the production of a new benzene sulfonamide derivative. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH239151A (en) |
-
1940
- 1940-11-22 CH CH239151D patent/CH239151A/en unknown
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