CH242489A - Process for the preparation of a new benzenesulfonamide derivative. - Google Patents
Process for the preparation of a new benzenesulfonamide derivative.Info
- Publication number
- CH242489A CH242489A CH242489DA CH242489A CH 242489 A CH242489 A CH 242489A CH 242489D A CH242489D A CH 242489DA CH 242489 A CH242489 A CH 242489A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- methyl
- quinoxaline
- benzenesulfonamide derivative
- new
- Prior art date
Links
- 150000008331 benzenesulfonamides Chemical class 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- ROVBIILRALJCKT-UHFFFAOYSA-N CC1=NC2=CC=CC=C2N=C1NS(=O)(=O)C1=CC=CC=C1 Chemical compound CC1=NC2=CC=CC=C2N=C1NS(=O)(=O)C1=CC=CC=C1 ROVBIILRALJCKT-UHFFFAOYSA-N 0.000 claims description 4
- 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
- 125000003277 amino group Chemical group 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 150000001875 compounds Chemical class 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
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- FSJDVWOGYWNVEU-UHFFFAOYSA-N 4-amino-n-(3-methylquinoxalin-2-yl)benzenesulfonamide Chemical compound CC1=NC2=CC=CC=C2N=C1NS(=O)(=O)C1=CC=C(N)C=C1 FSJDVWOGYWNVEU-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- -1 benzenesulfonic acid halides Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- ALHUXMDEZNLFTA-UHFFFAOYSA-N 2-methylquinoxaline Chemical class C1=CC=CC2=NC(C)=CN=C21 ALHUXMDEZNLFTA-UHFFFAOYSA-N 0.000 description 1
- WGHZDFAULZNZJE-UHFFFAOYSA-N 3-methylquinoxalin-2-amine Chemical compound C1=CC=C2N=C(N)C(C)=NC2=C1 WGHZDFAULZNZJE-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
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 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
- 238000001816 cooling Methods 0.000 description 1
- QIJQSTNYYPTNBF-UHFFFAOYSA-N ethyl n-(4-chlorosulfonylphenyl)carbamate Chemical compound CCOC(=O)NC1=CC=C(S(Cl)(=O)=O)C=C1 QIJQSTNYYPTNBF-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003756 stirring Methods 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/26—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings condensed with carbocyclic rings or ring systems
- C07D237/30—Phthalazines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
- C07D241/40—Benzopyrazines
- C07D241/44—Benzopyrazines with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung eines neuen Benzolsulfonamidderivates. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines neuen Benzolsulfonamidderivates, das dadurch ge kennzeichnet ist, daB man ein 2-Benzol- sulf onamido - 3 - methyl - chinoxalin,
das in p-Stellung einen durch Hydrolyse in die - Aminogruppe überführbaren Substituenten aufweist, mit einem hydrolysierenden Mittel behandelt.
Das so erhaltene 2 - (p - Amino -benzol- sulf ona#mido) - 3 - methyl - chinoxalin ist ein kristallines Pulver vom F. 204-205 (unter Zersetzung). Die neue Verbindung soll als Arzneimittel und als Zwischenprodukt Ver wendung finden.
Das 2-Benzolsulfonamido-3-methyl-chin- oxalin, das in p-Stellung zur Sulfonamid gruppe 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 3-Methyl-chinoxalinverbindungen, die in 2-Stellung eine Gruppe enthalten, die mit dem Benzolsulfonsäurederivat ein 2-Benzol- sulfonamido-3-methyl-chinoxalin zu bilden vermag,
wie mit 2 -Amino - 3 - methyl - ehin- oxalin. Man kann auch entsprechende Sulfon amide der Formel RSOZNHY, in der Y einen bei der nachfolgenden Reaktion sich abspaltenden Rest bedeutet, mit 2-Halogen- 3-methyl-chinoxalinen umsetzen. Auch kön nen andere, dem Fachmann geläufige Her stellungsmethoden benützt werden. <I>Beispiel:</I> 159 Teile 2-Amino-3-methyl-chinoxalin werden in 750 Teilen trockenem Pyridin auf dem Wasserbad gelöst.
Man kühlt auf zirka 20 ab und trägt unter weiterem Kühlen und unter Rühren 265,5 Teile p-Carbäthoxy- amino-benzolsulfochlorid langsam ein. Nach beendetem Eintragen erwärmt man 1 Stunde auf dem kochenden Wasserbad und destilliert das überschüssige Pyridin im Vakuum auf dem Wasserbade ab. Zum Rückstand gibt man Wasser und dann Salzsäure bis zur kongosauren Reaktion, wobei sich das gebil dete 2 - (p - Carbäthoxyamino - benzolsulfon- amido)-3-methyl-chinoxalin kristallisiert ab scheidet.
Man nutscht ab, wäscht mit Wasser und kristallisiert aus verdünntem Alkohol unter Zusatz von Tierkohle um. F. 238 bis 240 .
193 Teile 2-(p-Carbäthoxyamino-benzol- sulfonamido)-3-methyl-chinoxalin werden in 800 Teilen 2n-Natronlauge 1 Stunde lang auf <B>95'</B> erwärmt. Man verrührt dann mit Tier kohle, filtriert und fällt mit Salzsäure das 2 - (p -Amino,-benzolsulfonamido) -3-methyl- chinoxalin aus. Man nutscht ab, wäscht mit Wasser und trocknet. F. 204-205 (unter Zersetzung). Man kann aus viel zirka 80%igem Alkohol umkristallisieren.
Es ist möglich, die Hydrolyse auch mit andern alkalischen Mitteln, beispielsweise Erdalkalihydroxyden, wie Calciumhydroxyd, oder mit sauren Mitteln, z. B. Salzsäure, in Gegenwart von Wasser oder organischen Lö sungsmitteln, wie Alkohol, durchzuführen.
Das gebildete p-Amino-benzolsulfonämid- derivat lässt sich auch in Form seiner Salze, z. B. des Natriums oder des Calciums, isolieren.
Process for the preparation of a new benzenesulfonamide 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-benzenesulfonamido - 3 - methyl - quinoxaline,
which has a substituent which can be converted into the amino group by hydrolysis in the p-position, treated with a hydrolyzing agent.
The 2 - (p-amino-benzene-sulfonate) -3-methyl-quinoxaline obtained in this way is a crystalline powder with a melting point of 204-205 (with decomposition). The new compound is to be used as a drug and as an intermediate product.
The 2-benzenesulfonamido-3-methyl-quinoxaline, which in the p-position to the sulfonamide group contains a substituent 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 3-methyl-quinoxaline compounds which contain a group in the 2-position which with the benzenesulfonic acid derivative to form a 2-benzenesulfonamido-3-methylquinoxaline is particularly suitable able to form
as with 2-amino-3-methyl-ehinoxaline. Corresponding sulfonamides of the formula RSOZNHY, in which Y is a radical which is split off in the subsequent reaction, can also be reacted with 2-halo-3-methylquinoxalines. Other production methods familiar to those skilled in the art can also be used. <I> Example: </I> 159 parts of 2-amino-3-methyl-quinoxaline are dissolved in 750 parts of dry pyridine on a water bath.
The mixture is cooled to about 20 and, with further cooling and stirring, 265.5 parts of p-carbethoxyamino-benzenesulfonyl chloride are slowly introduced. When the addition is complete, the mixture is heated for 1 hour on the boiling water bath and the excess pyridine is distilled off in vacuo on the water bath. Water and then hydrochloric acid are added to the residue until the Congo acidic reaction occurs, whereby the formed 2- (p-carbethoxyamino-benzenesulfonamido) -3-methyl-quinoxaline separates out in crystallized form.
It is filtered off with suction, washed with water and recrystallized from dilute alcohol with the addition of animal charcoal. F. 238 to 240.
193 parts of 2- (p-carbethoxyamino-benzenesulfonamido) -3-methyl-quinoxaline are heated to 95 'in 800 parts of 2N sodium hydroxide solution for 1 hour. It is then stirred with animal charcoal, filtered and 2 - (p -amino, -benzenesulfonamido) -3-methylquinoxaline is precipitated with hydrochloric acid. One sucks off, washed with water and dried. F. 204-205 (with decomposition). You can recrystallize from a lot of about 80% alcohol.
It is possible to carry out the hydrolysis with other alkaline agents, for example alkaline earth metal hydroxides such as calcium hydroxide, or with acidic agents, e.g. B. hydrochloric acid in the presence of water or organic solvents such as alcohol, to perform.
The p-amino-benzenesulfonamide derivative formed can also be used in the form of its salts, e.g. B. of sodium or calcium isolate.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE242489X | 1939-05-23 | ||
| CH240221T | 1945-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH242489A true CH242489A (en) | 1946-05-15 |
Family
ID=25728487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH242489D CH242489A (en) | 1939-05-23 | 1941-05-23 | Process for the preparation of a new benzenesulfonamide derivative. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH242489A (en) |
-
1941
- 1941-05-23 CH CH242489D patent/CH242489A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH242489A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH242488A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| DE921265C (en) | Process for the preparation of aryl-substituted pyrazoline compounds | |
| CH242494A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH242495A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH249999A (en) | Process for the preparation of a benzenesulfonamide derivative. | |
| AT134626B (en) | Process for the preparation of amino alcohols. | |
| CH239150A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239156A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239146A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239155A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239153A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239683A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH239154A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239147A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH303086A (en) | Process for the production of a coumarin derivative. | |
| CH249998A (en) | Process for the preparation of a benzenesulfonamide derivative. | |
| CH244509A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH239157A (en) | Process for the production of a new benzene sulfonamide derivative. | |
| CH239680A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH250005A (en) | Process for the preparation of a benzenesulfonamide derivative. | |
| CH239684A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH242493A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH242492A (en) | Process for the preparation of a new benzenesulfonamide derivative. | |
| CH188882A (en) | Process for the preparation of a 2-oxychrysenic monosulfonic acid. |