DE1806993A1 - Aromatic di-and tri-sulphones - Google Patents

Aromatic di-and tri-sulphones

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Publication number
DE1806993A1
DE1806993A1 DE19681806993 DE1806993A DE1806993A1 DE 1806993 A1 DE1806993 A1 DE 1806993A1 DE 19681806993 DE19681806993 DE 19681806993 DE 1806993 A DE1806993 A DE 1806993A DE 1806993 A1 DE1806993 A1 DE 1806993A1
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Germany
Prior art keywords
aromatic
sulphones
degrees
tri
nitro
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19681806993
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German (de)
Inventor
Nischk Dr Guenther Ernst
Bentz Dr Francis
Rinehr Dr Ulrich
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Bayer AG
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Bayer AG
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Publication date
Application filed by Bayer AG filed Critical Bayer AG
Priority to DE19681806993 priority Critical patent/DE1806993A1/en
Publication of DE1806993A1 publication Critical patent/DE1806993A1/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C317/00Sulfones; Sulfoxides

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Aromatic di- and tri-sulphones are prepared by reacting alkali metal salts of benzene sulphinic acids or their alkyl, halogen and carboxyl derivs. with aromatic NO2 gp. containing sulphones which contain at least one NO2 gp. in p-posn. to sulphonyl gp. in strongly polar solvents at 80 degrees-160 degrees C, pref. 120 degrees-160 degrees C. Reactn. pref. carried out in dimethylformamide or dimethylsulphoxide. The di- and tri-sulphones are starting substances for high polymers.

Description

Verfahren zur Herstellung aromatischer Di- und Trisulfone Gegenstand der Erfindung ist ein Verfahren zur Herstellung von aromatischen Di- und Trisulfonen aus nitrogruppenhalti gen aromatischen Monosulfonen und Alkalisalzen von aromatischen Sulfinsäuren. Process for the preparation of aromatic di- and trisulfones Subject of the invention is a process for the preparation of aromatic di- and trisulfones from nitro-containing aromatic monosulfones and alkali metal salts of aromatic Sulfinic acids.

Es ist bekannt, daß man in aromatischen Nitroverbindungen die Nitrogruppen durch Alkoxygruppen austauschen kann.It is known that the nitro groups in aromatic nitro compounds can replace by alkoxy groups.

Zum Beispiel erhält man aus 4,4'-Dinitrobenzophenon und Natriummethylat 4,41-Dimethoxybenzophenon (Chem. and Ind.For example, 4,4'-dinitrobenzophenone and sodium methylate are obtained from 4,4'-dinitrobenzophenone 4,41-dimethoxybenzophenone (Chem. And Ind.

1967, Bd. 36, 152). Dabei muß man aber in sehr verdünnten Lösungen arbeiten, um hohe Ausbeuten zu erzielen. Es ist ferner bekannt, daß durch Umsetzung von benzolsulfinsaurem Natrium mit 2,4-Dinitrodiphenylsulfon in wäßrigem Dioxan eine einzige Nitrogruppe gegen eine Phenylsulfonvlgrunpierung ausgetauscht wird, obgleich ein molares Mengenverhältnis von Benzolsulfinat zu 2,4-Dinitrodiphenylsulfon wie 4 : 1 gewäblt wurde (J. D. Loudon, J. chem. Soc., London 1936, 2185.1967, vol. 36, 152). But you have to use very dilute solutions work to achieve high yields. It is also known that by implementation of sodium benzenesulfinate with 2,4-dinitrodiphenylsulfone in aqueous dioxane a single nitro group is exchanged for a phenyl sulfone group, although a molar ratio of benzenesulfinate to 2,4-dinitrodiphenylsulfone how 4: 1 was waved (J. D. Loudon, J. chem. Soc., London 1936, 2185.

Nacharbeiten der angegebenen Synthese ergab trotz Uberschusses an Benzolsulfinsaurem Natrium, daß das gewünschte Produkt nur in'6 zeiger Ausbeute erhalten wurde.Reworking the specified synthesis resulted in despite the excess Sodium Benzolsulfinsaurem that the desired product only in'6 show yield was obtained.

Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von aromatischen Di- und Trisulfonen, das dadurch gekennzeichnet ist, daß Alkalisalze von Benzolsulfinsäuren oder deren Alkyl-, Halogen- und Carboxy-Derivaten mit aroma tischen nitrögruppenhaltigen Sulfonen, die mindestens eine Nitrogruppe in para-Stellung zur Sulfonylgruppe besitzen, in stark polaren Lösungsmitteln bei Temperaturen zwischen 80 - 16GO\J vorzugsweise 120 - 160°C, umgesetzt werden.The present invention relates to a method of production of aromatic di- and trisulfones, which is characterized in that alkali salts of benzenesulfinic acids or their alkyl, halogen and carboxy derivatives with aroma tables containing sulfones containing nitro groups, which have at least one nitro group in the para position to the sulfonyl group, in strongly polar solvents at temperatures between 80-16GO \ J, preferably 120-160 ° C, are implemented.

Das Verfahren läßt sich anhand der folgenden beispielhaften Gleichung verdeutlichen: Bevorzugt verwendet man die Alkalisulfinate in etwa stöchiometrischen Mengen.The procedure can be illustrated using the following equation as an example: The alkali metal sulfinates are preferably used in approximately stoichiometric amounts.

Es war nun überraschend, daß bei der Umsetzung von 4,4'-Dinitrodiphenylsulfon mit den Alkalisalzen von aromatischen Sulfinsäuren beide Nitrogruppen ausgetauscht wurden, obwohl kein Überschuß an Sulfinat genommen wurde. Als nitrogruppenhaltige aromatische Sulfone werden bevorzugt Verbindungen folwender Struktur verwendet wobei X - H, N02 oder Halogen bedeutet.It was now surprising that when 4,4'-dinitrodiphenylsulfone was reacted with the alkali metal salts of aromatic sulfinic acids, both nitro groups were exchanged, although no excess of sulfinate was used. Compounds of the following structure are preferably used as aromatic sulfones containing nitro groups where X - denotes H, NO 2 or halogen.

Diese Verbindungen können auch weitere Substituenten tragen, sofern sie gegenüber der Reaktion inert sind.These compounds can also carry further substituents, provided that they are inert to the reaction.

Es können demnach zum Beispiel folgende Verbindungen eingesetzt werden: 4-Nitrodiphenylsulfon, 4,4'-Dinitrodiphenylsulfon, 4-Nitro-4'-cblor-diphenylsulfon und deren Alkyl-und Halogenderivate. Als Sulfinsäure-Komponente können die Alkalisalze folgender Sulfinsäuren benutzt werden: Benzolsulfinsäure oder mit Alkyl (z. B. C1 - C6) Halogen (z. B.The following compounds, for example, can therefore be used: 4-nitrodiphenyl sulfone, 4,4'-dinitrodiphenyl sulfone, 4-nitro-4'-chloro-diphenyl sulfone and their alkyl and halogen derivatives. The alkali metal salts can be used as the sulfinic acid component the following sulfinic acids can be used: benzenesulfinic acid or with alkyl (e.g. C1 - C6) halogen (e.g.

Chlor) und Carboxylgruppen substituierte Benzolsulfinsäure, wie z. B. p-Toluolsulfinsäure, 4-Chlor-benzolsulfinsäure und 4-Carboxy-behzolsulfinsäure. Bevorzugt sind die Natriumsalze, es können aber auch Kaliumsalze verwendet werden.Chlorine) and carboxyl groups substituted benzenesulfinic acid, such as. B. p-toluenesulfinic acid, 4-chloro-benzenesulfinic acid and 4-carboxy-behzenesulfinic acid. The sodium salts are preferred, but potassium salts can also be used.

Die Reaktion kann durchgeführt werden durch Erwärmen der oben angegebenen Komponenten im entsprechenden Molverhältnis in den bereits erwähnten Lösungsmitteln. Es kann selbstverständlich ein geringer Überschuß an einer der Komponenten genommen werden. Die Reaktionstemperatur beträgt zwischen 80 - 1600C, vorzugsweise 120 - 1400 C. Die Reaktion ist beendet nach 1 - 12 Stunden, vorzugsweise 4 - 6 Stunden. Die Isolierung der Umsetzungsprodukte kann z. B. durch Abfiltrieren der angefallenen Reaktionsprodukte nach Abkühlen der Lösung oder durch Ausfällen des Reaktionsproduktes z. B.The reaction can be carried out by heating the above Components in the appropriate molar ratio in the solvents already mentioned. A slight excess of one of the components can of course be used will. The reaction temperature is between 80-1600C, preferably 120- 1400 ° C. The reaction is complete after 1 to 12 hours, preferably 4 to 6 hours. The isolation of the reaction products can, for. B. by filtering off the accumulated Reaction products after cooling the Solution or failure of the reaction product e.g. B.

mit Wasser oder durch Einengen der Lösung im Vakuum.with water or by concentrating the solution in vacuo.

Die auf diesem Wege erhaltenen aromatischen Di- und Trisulfone sind wichtige Ausgangssubstanzen für Hochpolymere.The aromatic di- and trisulfones obtained in this way are important starting substances for high polymers.

Beispiel 200 Gewichtsteile Natriumbenzolsulfinat werden in 1000 Volumenteile Dimethylsulfoxid unter Rühren mit 265 Gewichtsteilen 4-Nitrodiphenylsulfon versetzt und 4 Stunden auf 1300C erwärmt.Example 200 parts by weight of sodium benzene sulfinate are used in 1000 parts by volume Dimethyl sulfoxide is admixed with 265 parts by weight of 4-nitrodiphenyl sulfone while stirring and heated to 1300C for 4 hours.

Man läßt abkühlen, gießt das Reaktionsgemisch in Eiswasser und saugt den entstandenen Niederschlag ab. Dann wird aus 2000 Volumenteile Aceton umkristallisiert. Es wurde in 63 %iger Ausbeute die entsprechende Disulfonylverbindung erhaltene Farblose, verfilzte Nadeln vom Fp. 235 - 2380C.It is allowed to cool, the reaction mixture is poured into ice water and suctioned the resulting precipitate. Then it is recrystallized from 2000 parts by volume of acetone. The corresponding disulfonyl compound was obtained in 63% yield. matted needles of mp 235-2380C.

Verwendet man Dimethylformamid als Lösungsmittel unter son@t gleichen Bedingungen, dann erhält man eine 90 %ige Ausbeute.If one uses dimethylformamide as a solvent among other things the same Conditions then a 90% yield is obtained.

Analog dazu wurden folgende Produkte umgesetzt: 4-Nitrodiphenylsulfon 1 4,4'-Dinitrodiphenylsul£on II 4-Nitro-4'-chlor-diphenylsulfon III Anlage zur Eingabe vo@ 9.12.68 P 18 06 993.7 Nr. [email protected] Sul- Endprodukt Lsgm. Asb. Fp. fon (%) 1 Ph-SO2-Na I Ph-SO2-Ph-SO2-Ph DMSO 63 235/8 2 Ph-SO2-Na II Ph-SO2-Ph-SO2-Ph-SO2-Ph DMSO 62 305/8 3 Cl-Ph-SO2Na I Cl-Ph-SO2-Ph-SO2-Ph DMSO 67 171 4 CH3-Ph-SO2Na I CH3-Ph-SO2-Ph-SO2-Ph DMSO 70 198 5 Cl-Ph-SO2Na II Cl-Ph-SO2-Ph-SO2-Ph-NO2 DMSO 60 300 6 CH3-Ph-SO2Na II CH3-Ph-SO2-Ph-SO2-Ph-NO2 DMSO 69 300 7 HOOC-Ph-SO2Na I HOOC-Ph-SO2-Ph-SO2-Ph DMSO 63 300 8 Ph-SO2-Na III Ph-SO2-Ph-SO2-Ph-SO2-Ph DMF 68 305/8 Nr. Berechnete Analysenwerte gefundene Analysenwerte c H N s 0 Cl C H X 5 0 Cl 1 60,34 3,94 - 17,86 17,86 - 59,1 4,0 - 18.0 18,8 - 58,8 4,0 - 17,8 18,4 2 57,84 3,64 - 19,26 19,26 - 57,5 3,9 - 18,9 19,9 - 57,4 3,5 18,9 19,3 3 55,02 3,33 - 16,32 - 9,02 56,0 3,6 - 15,9 - 5,0 56,5 3,0 15,3 5,0 4 61,29 4,33 - 17,19 17,10 - 61,2 4,3 - 16,2 17,6 - 61,0 16,2 17,6 5 49,39 2,76 - - 21,90 8,13 49,6 3,0 - - 19,8 8,3 49,5 2,9 20,0 8,2 6 54,68 3,62 - 15,34 23,00 - 54,7 4,1 - 16,8 20,7 - 54,7 16,8 20,6 7@ 55,52 3,67 - 15,57 25,30 - 55,9 3,4 - 15,4 24,8 - 55,9 15,3 24,8 7 * berechnet mit 0,5 Mol KristallwasserThe following products were reacted analogously to this: 4-Nitrodiphenylsulfon 1 4,4'-Dinitrodiphenylsul £ on II 4-Nitro-4'-Chloro-diphenylsulfon III Appendix for entry of 12/9/68 P 18 06 993.7 No. Sulfin @ .Na Sul final product Lsgm. Asb. Fp. phone (%) 1 Ph-SO2-Na I Ph-SO2-Ph-SO2-Ph DMSO 63 235/8 2 Ph-SO2-Na II Ph-SO2-Ph-SO2-Ph-SO2-Ph DMSO 62 305/8 3 Cl-Ph-SO2Na I Cl-Ph-SO2-Ph-SO2-Ph DMSO 67 171 4 CH3-Ph-SO2Na I CH3-Ph-SO2-Ph-SO2-Ph DMSO 70 198 5 Cl-Ph-SO2Na II Cl-Ph-SO2-Ph-SO2-Ph-NO2 DMSO 60 300 6 CH3-Ph-SO2Na II CH3-Ph-SO2-Ph-SO2-Ph-NO2 DMSO 69 300 7 HOOC-Ph-SO2Na I HOOC-Ph-SO2-Ph-SO2-Ph DMSO 63 300 8 Ph-SO2-Na III Ph-SO2-Ph-SO2-Ph-SO2-Ph DMF 68 305/8 No. Calculated analytical values, found analytical values c HN s 0 Cl CHX 5 0 Cl 1 60.34 3.94 - 17.86 17.86 - 59.1 4.0 - 18.0 18.8 - 58.8 4.0 - 17.8 18.4 2 57.84 3.64 - 19.26 19.26 - 57.5 3.9 - 18.9 19.9 - 57.4 3.5 18.9 19.3 3 55.02 3.33 - 16.32 - 9.02 56.0 3.6 - 15.9 - 5.0 56.5 3.0 15.3 5.0 4 61.29 4.33 - 17.19 17.10 - 61.2 4.3 - 16.2 17.6 - 61.0 16.2 17.6 5 49.39 2.76 - - 21.90 8.13 49.6 3.0 - - 19.8 8.3 49.5 2.9 20.0 8.2 6 54.68 3.62 - 15.34 23.00 - 54.7 4.1 - 16.8 20.7 - 54.7 16.8 20.6 7 @ 55.52 3.67 - 15.57 25.30 - 55.9 3.4 - 15.4 24.8 - 55.9 15.3 24.8 7 * calculated with 0.5 mol of water of crystallization

Claims (1)

Patentansprüche 1) Verfahren zur Herstellung von aromatischen Di- und Trisulfonen, dadurch gekennzeichnet, daß Alkalisalze von Benzolsulfinsäuren oder deren Alkyl-, Halogen- und Carboxy-Derivaten mit aromatischen nitrogruppenhaltigen Sulfonen, die mindestens eine Nitrogruppe in para-Stellung zur Sulfonylgruppe besitzen, in stark polaren Lösungsmitteln bei Temperaturen zwischen 80 - 160°C, vorzugsweise 120 - 16000, umgesetzt werden 2) Verfahren zur Herstellung von aromatischen Di- und Trisulfonen nach Anspruch 1), dadurch gekennzeichnet, daß die Reaktion in Dimethylformamid oder Dimethylsulfoxid durchgeführt wird.Claims 1) Process for the production of aromatic di- and trisulfones, characterized in that alkali salts of benzenesulfinic acids or their alkyl, halogen and carboxy derivatives with aromatic nitro-containing groups Sulfones which have at least one nitro group in the para position to the sulfonyl group, in strongly polar solvents at temperatures between 80-160 ° C, preferably 120 - 16000, are implemented 2) Process for the production of aromatic di- and trisulfones according to claim 1), characterized in that the reaction takes place in dimethylformamide or dimethyl sulfoxide is carried out.
DE19681806993 1968-11-05 1968-11-05 Aromatic di-and tri-sulphones Pending DE1806993A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245730A1 (en) * 1986-05-13 1987-11-19 Bayer Ag Process for the preparation of aromatic (poly)sulfones
US5008369A (en) * 1989-11-01 1991-04-16 Eastman Kodak Company Preparation of polysulfones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0245730A1 (en) * 1986-05-13 1987-11-19 Bayer Ag Process for the preparation of aromatic (poly)sulfones
US5008369A (en) * 1989-11-01 1991-04-16 Eastman Kodak Company Preparation of polysulfones

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