CH200367A - Process for the production of an aminoarylsulfone. - Google Patents
Process for the production of an aminoarylsulfone.Info
- Publication number
- CH200367A CH200367A CH200367DA CH200367A CH 200367 A CH200367 A CH 200367A CH 200367D A CH200367D A CH 200367DA CH 200367 A CH200367 A CH 200367A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- ammonia
- halogen
- aminoarylsulfone
- reaction
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- LMCOQDVJBWVNNI-UHFFFAOYSA-N 1-chloro-4-methylsulfonylbenzene Chemical compound CS(=O)(=O)C1=CC=C(Cl)C=C1 LMCOQDVJBWVNNI-UHFFFAOYSA-N 0.000 claims description 3
- 239000000975 dye Substances 0.000 claims description 3
- 229940126601 medicinal product Drugs 0.000 claims description 3
- XJEVFFNOMKXBLU-UHFFFAOYSA-N 4-methylsulfonylaniline Chemical compound CS(=O)(=O)C1=CC=C(N)C=C1 XJEVFFNOMKXBLU-UHFFFAOYSA-N 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- -1 halogen sulfones Chemical class 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- GEYRZILBLWWDNB-UHFFFAOYSA-N 2-[2-[2-(2-amino-5-nitrophenyl)ethylsulfonyl]ethyl]-4-nitroaniline Chemical compound NC1=C(C=C(C=C1)[N+](=O)[O-])CCS(=O)(=O)CCC1=C(C=CC(=C1)[N+](=O)[O-])N GEYRZILBLWWDNB-UHFFFAOYSA-N 0.000 description 1
- CZGCEKJOLUNIFY-UHFFFAOYSA-N 4-Chloronitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(Cl)C=C1 CZGCEKJOLUNIFY-UHFFFAOYSA-N 0.000 description 1
- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 229940100198 alkylating agent Drugs 0.000 description 1
- 239000002168 alkylating agent Substances 0.000 description 1
- 150000003974 aralkylamines Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000003455 sulfinic acids Chemical class 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Aminoarylsulfones. Es. wurde gefunden, daS man in glatter Reaktion mit vorzüglicher Ausbeute zu o- und p-Aminoarylsulfonen ,gelangt, wenn man Halogenarylsulfone der Formel:
o- bezw. p-Hal.-Aryl=SOZ-R, worin R einen Alkyl-, Aralkyl- oder Aryl- rest bedeutet, und bei denen, noch weitere Halo@genatüme und andere, nicht negative Substituenten vorhanden;
!sein können, mit Ammoniak bezw. ammoniakabspaltenden Mitteln oder mit solchen organischen Ami nen, :die noch mindestens ein am Sti.ekstoff befindliches Wasserstoffatom enthalten, er hitzt.
Als solche Amine seien beispielsweise genannt: primäre und sekundäre Alkyl- bezw. Ogalkylamine, Arylamine, Aralkyl- a_mine, Cycloalkylamine und heterooyclische Amine.
Die so erhaltenen, gegebenenfalls in der Amin b-ruppa substituierten Aminoary1sul- fone sollen als Zwischenprodukte zur Her stellung von Farbstoffen, insbesondere Azo- farbstoffen, und von Heilmitteln Verwven- ,dung finden.
Inder Schweizer Patentschrift Nr. 178224 wird die Herstellung des 2-Amino-5-nitro- phenylö,thylsulfons durch Einwirkung von Ammoniak auf die entsprechende 2-Chlor- verbindung erwähnt. In diesem Falle bietet die Umsatzpeaktion aber nichts Bemerkens- wertes.,,
da bekanntlich die Beweglichkeit des Halogens durch die p-ständige Nitrogruppe bedingt ist, wie schon aus dar altbekannten Darstellungsweise von p-Nitranilin aus p- Nitrochlorbenzol hervorgeht.
Es ist aber überraschend, dass bei vor liegenden Halogensulfonen, bei denen eine beweglich machende Nitrogruppe fehlt, trotz dem der Austausch .des Halogens gegen die Aminogruppe in .glatter Reaktion .gelingt.
Geht man von Halogensulfonen aus, die mehrere Halogenatome enthalten:, so setzt sich nur dasl zur Sulfongruppe o- bezw. p- ständige Halogenatom mit Ammoniak um, während m-ständige Halogenatome völlig unberührt bleiben.
Man gelangt auf diese Weise in praktisch einheitlicher Reaktion mit vorzüglicher Ausbeute zu Halogen- aminosulfonen; ein Erfolg, der besonders überraschend ist.
Halogensulfone der gekennzeichneten, Art lassen sich bequem darstellen, und zwar einerseits ausgehend von Halogenaryl-eulfo- ehloridendurch Überführen in das sulfin- saure.Salz und Umsetzung des letzteren mit einem alkylierenden Mittel,
anderseits nach der Friedel-Crafts-Reaktion durch Um- setzung vom entweder Halogenaryl-sulfo- chloriden mit gegebenenfalls substituierten Kohlenwasserstoffen oder von nicht haloge- nierten Arylsulfochloriden bezw. Derivaten mit Halogenarylen in
Gegenwart von Alu miniumchlorid. Die Halogensulfone stellen daher leicht zugängliche Körper für die vor liegende Reaktion dar. Gegenüber dem bis- her bekannten Darstellungsweg von Amino- sulfonen, ausgehend von Nitrohalogenben- zolen, Umwandlung in Disulfide, Reduktion zu Merkaptanen, Überführung in Thioäther,
Oxydation zu Sulfonen und endlich Reduk- tion der Nitro- zur Aminogruppe, stellt das vorliegende Verfahren eine Bereicherung der Technik dar.
Vorliegendes Patent bezieht sich nun auf ein Verfahren zur Herstellung eines Amino- arylsulfones, dadurch gekennzeichnet, dass man 4-Chlorphenylmethylsulfon mit Am moniak umsetzt.
Das so erhaltene 4-Aminophenylmethyl- sulfon besitzt die in der Literatur beschTie- benen Eigenschaften und soll zur Herstel- lung von Farbstoffen und Heilmitteln Ver- wendung finden.
Beispiel: 100 Teile 4-Chlorphenylmethylsulfon wer den mit etwa 500 Teilen 210%igem Am moniak in einem Druckgefäss unter Rühren etwa 24 Stunden auf 195 bis 200' C erhitzt.
Nach dem Erkalten wird das Reaktionspro- dukt abgesaugt, mit kaltem Wasser ge- waschen und getrocknet.
Process for the production of an aminoarylsulfone. It. it has been found that o- and p-aminoarylsulfones are obtained in a smooth reaction with excellent yield if haloarylsulfones of the formula:
o- or. p-Hal.-Aryl = SOZ-R, in which R denotes an alkyl, aralkyl or aryl radical, and in which there are further halos and other non-negative substituents;
can be, with ammonia respectively. ammonia-releasing agents or with such organic amines: which still contain at least one hydrogen atom on the nitrogen, it heats.
Examples of such amines are: primary and secondary alkyl or. Ogalkylamines, arylamines, aralkylamines, cycloalkylamines and heterooyclic amines.
The aminoary1sulphones obtained in this way, optionally substituted in the amine b-ruppa, are intended to be used as intermediates for the preparation of dyes, in particular azo dyes, and of medicinal products.
The Swiss patent specification No. 178224 mentions the preparation of 2-amino-5-nitrophenylethylsulfone by the action of ammonia on the corresponding 2-chlorine compound. In this case, however, the sales promotion offers nothing remarkable.
since, as is well known, the mobility of the halogen is caused by the p-nitro group, as can be seen from the well-known way of presenting p-nitroaniline from p-nitrochlorobenzene.
It is surprising, however, that in the case of the halogen sulfones present, in which a mobile nitro group is missing, the exchange of the halogen for the amino group succeeds in a smooth reaction.
If one proceeds from halogen sulfones that contain several halogen atoms: then only dasl to the sulfone group o- or. p-halogen atom with ammonia, while m-halogen atoms remain completely unaffected.
In this way, haloaminosulfones are obtained in a practically uniform reaction with excellent yield; a success that is particularly surprising.
Halogen sulfones of the type indicated can be easily prepared, on the one hand starting from haloaryl-eulfo-ehlorides by converting them into the sulfinic acid salt and reacting the latter with an alkylating agent,
on the other hand, according to the Friedel-Crafts reaction by reaction of either haloaryl sulfochlorides with optionally substituted hydrocarbons or of non-halogenated aryl sulfochlorides or. Derivatives with haloarylene in
Presence of aluminum chloride. The halosulfones are therefore easily accessible bodies for the reaction in question.
Oxidation to sulfones and finally reduction of the nitro to the amino group, the present process represents an enrichment of the technology.
The present patent now relates to a process for the production of an aminoaryl sulfone, characterized in that 4-chlorophenylmethyl sulfone is reacted with ammonia.
The 4-aminophenylmethylsulfone obtained in this way has the properties described in the literature and is intended to be used for the production of dyes and medicinal products.
Example: 100 parts of 4-chlorophenylmethylsulfone are heated to 195 to 200 ° C with about 500 parts of 210% ammonia in a pressure vessel with stirring for about 24 hours.
After cooling, the reaction product is filtered off with suction, washed with cold water and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200367X | 1936-11-28 | ||
| DE221037X | 1937-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH200367A true CH200367A (en) | 1938-10-15 |
Family
ID=25758547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH200367D CH200367A (en) | 1936-11-28 | 1937-11-25 | Process for the production of an aminoarylsulfone. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH200367A (en) |
-
1937
- 1937-11-25 CH CH200367D patent/CH200367A/en unknown
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