DE1093355B - Process for the manufacture of fungicides - Google Patents

Process for the manufacture of fungicides

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Publication number
DE1093355B
DE1093355B DES53663A DES0053663A DE1093355B DE 1093355 B DE1093355 B DE 1093355B DE S53663 A DES53663 A DE S53663A DE S0053663 A DES0053663 A DE S0053663A DE 1093355 B DE1093355 B DE 1093355B
Authority
DE
Germany
Prior art keywords
dichloro
ethylene
sulfones
fungicides
sulfoxides
Prior art date
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
DES53663A
Other languages
German (de)
Inventor
Jean Metivier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of DE1093355B publication Critical patent/DE1093355B/en
Pending legal-status Critical Current

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Classifications

    • 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)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Verfahren zur Herstellung von Fungiziden Die deutsche Patentschrift 889 147 betrifft die Nitrierung von Vinylarylsulfonen und von Monohalogenvinylarylsulfonen. In der deutschen Patentschrift 635 396 ist die Herstellung von Vinylsulfonen und Vinylsulfoxyden der allgemeinen Formeln CH2 = CHSOR und CH2 = CHSO2R, worin R eine Arylgruppe, welche einen Nitrorest trägt, bedeuten kann, durch Oxydation der entsprechenden Sulfide mittels Luft beschrieben.Process for the production of fungicides The German patent specification 889 147 relates to the nitration of vinyl aryl sulfones and monohalovinyl aryl sulfones. In the German patent 635 396 is the production of vinyl sulfones and Vinyl sulfoxides of the general formulas CH2 = CHSOR and CH2 = CHSO2R, where R is Aryl group, which carries a nitro radical, can mean by oxidation of the corresponding Sulphides described by means of air.

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Fungiziden. Erfindungsgemäß werden 1 ,2-Dichlor-vinyl-aryl-sulfoxyde oder - sulfone der allgemeinen Formel in der X den Sulfoxyd- oder Sulfonylrest und R1 und R2, die identisch oder verschieden sein können, Wasserstoff oder Chlor oder den Methyl- oder Methoxylrest bedeuten, in an sich bekannter Weise nitriert zu 1,2-Dichlor-vinylnitroaryl-sulfoxyden oder -sulfonen der allgemeinen Formel in der X R1 und R2 die obige Bedeutung haben.The present invention relates to a method for producing fungicides. According to the invention, 1,2-dichloro-vinyl-aryl-sulfoxides or sulfones of the general formula are used in which X denotes the sulfoxide or sulfonyl radical and R1 and R2, which can be identical or different, denote hydrogen or chlorine or the methyl or methoxyl radical, nitrated in a manner known per se to give 1,2-dichloro-vinylnitroaryl-sulfoxides or sulfones the general formula in which X R1 and R2 have the above meaning.

Diese erfindungsgemäßen Verbindungen zeichnen sich überraschenderweise durch gute fungizide Eigenschaften aus. These compounds according to the invention are surprisingly notable characterized by good fungicidal properties.

Die in den folgenden Beispielen angegebenen Schmelzpunkte wurden auf der Kofler-Bank bestimmt. The melting points given in the following examples were on the Kofler Bank determined.

Beispiel 1 Man versetzt eine Suspension von 27,1 g 1,2-Dichlor-1-(4'-chlorbenzolsulfonyl)-äthylen in 180 g Schwefelsäure (d = 1,83) unter Rühren nach und nach mit 12,5 g Natriumnitrat derart, daß eine Temperatur von 34 bis 35° C nicht überschritten wird. Nach Beendigung der Zugabe rührt man noch 45 Minuten. Example 1 A suspension of 27.1 g of 1,2-dichloro-1- (4'-chlorobenzenesulfonyl) ethylene is added in 180 g of sulfuric acid (d = 1.83) with stirring gradually with 12.5 g of sodium nitrate such that a temperature of 34 to 35 ° C is not exceeded. After completion the addition is stirred for a further 45 minutes.

Das Reaktionsgemisch wird langsam in 500 ccm destilliertes Wasser eingegossen. Der so erhaltene Niederschlag wird filtriert, mit Wasser gewaschen und getrocknet. Er wiegt 30 g. The reaction mixture is slowly poured into 500 cc of distilled water poured. The precipitate obtained in this way is filtered and washed with water and dried. It weighs 30 g.

Nach Umkristallisation aus Äthanol erhält man 1,2 - Dichlor - 1- (3' -nitro -4' - chlorbenzolsulfonyl) - äthylen vom F. -- 107 bis 1080C. After recrystallization from ethanol, 1,2 - dichloro - 1- (3 '-nitro -4' - chlorobenzenesulfonyl) - ethylene from F. -107 to 1080C.

Beispiel 2 Man arbeitet, wie im Beispiel 1 beschrieben, geht jedoch von 26,5 g 1,2-Dichlor-1-(3',4'-dimethylbenzolsultonyl)-äthylen aus und erhält nach Umkristallisation aus Äthanol 18 g 1,2-Dichlor-1-(3'-nitro-4',5'-dimethylbenzolsulfonyl)-äthylen vom F. = 124"C. Example 2 One works as described in Example 1, but works of 26.5 g of 1,2-dichloro-1- (3 ', 4'-dimethylbenzenesultonyl) -ethylene and receives after Recrystallization from ethanol 18 g of 1,2-dichloro-1- (3'-nitro-4 ', 5'-dimethylbenzenesulfonyl) -ethylene from F. = 124 "C.

Beispiel 3 Man arbeitet, wie im Beispiel 1 beschrieben, geht jedoch von 25,1 g 1 ,2-Dichlor-1 -(4'-methylbenzolsulfonyl)-äthylen aus und erhält so ein Öl, das man mit Chloroform extrahiert, mit Wasser wäscht und über Kaliumcarbonat trocknet. Nach Behandlung mit Entfärbungskohle und Verdampfen des Chloroforms erhält man 28,2 g eines Rückstands, der nach Kristallisieren aus Äthanol 23 g 1 ,2-Dichlor-1 - (3'-nitro-4'-methylbenzolsulfonyl) -äthylen vom F. = 88"C liefert. Example 3 One works as described in Example 1, but goes of 25.1 g of 1, 2-dichloro-1 - (4'-methylbenzenesulfonyl) ethylene and thus receives a Oil, which is extracted with chloroform, washed with water and dried over potassium carbonate dries. Obtained after treatment with decolorizing charcoal and evaporation of the chloroform 28.2 g of a residue which, after crystallization from ethanol, 23 g of 1,2-dichloro-1 - (3'-nitro-4'-methylbenzenesulfonyl) -ethylene of F. = 88 "C gives.

Beispiel 4 Man arbeitet, wie im Beispiel 1 beschrieben, geht jedoch von 26,7 g 1,2-Dichlor-1-(4'-methoxybenzolsulfonyl)-äthy len aus und erhält so eine Festsubstanz, die man mit Chloroform extrahiert. Die Chloroformlösung wird hierauf mit Wasser gewaschen und getrocknet. Nach Behandlung mit Entfärbungskohle verdampft man das Lösungsmittel. Example 4 The procedure is as described in Example 1, but it is possible of 26.7 g of 1,2-dichloro-1- (4'-methoxybenzenesulfonyl) -äthy len and thus receives one Solid substance extracted with chloroform. The chloroform solution is then added washed with water and dried. Vaporized after treatment with decolorizing charcoal one the solvent.

Der so erhaltene Rückstand wiegt 29,5 g.The residue thus obtained weighs 29.5 g.

Nach Kristallisieren aus Äthanol erhält man 1,2Die chlor-1 -(3'-nitro-4'-methoxybenzolsulfonyl)-äthylen vom F. = 1300C. After crystallization from ethanol 1,2Die chloro-1 - (3'-nitro-4'-methoxybenzenesulfonyl) -ethylene is obtained from F. = 1300C.

Beispiel 5 Man arbeitet, wie im Beispiel 4 beschrieben, geht jedoch von 28,5 g 1 ,2-Dichlor-1 -(3'-chlor-4'-methylbenzolsulfonyl)-äthylen aus und erhält so 29 g eines Rückstands. Example 5 One works as described in Example 4, but goes of 28.5 g of 1,2-dichloro-1 - (3'-chloro-4'-methylbenzenesulfonyl) ethylene from and receives so 29 g of a residue.

Nach Kristallisation aus Äthanol erhält man 1,2-Dichlor-1-(3'-chlor4'-methyl-5'-nitrobenzolsulfonyl)-äthylen vom F. = 158"C.After crystallization from ethanol 1,2-dichloro-1- (3'-chlor4'-methyl-5'-nitrobenzenesulfonyl) -ethylene is obtained from F. = 158 "C.

Beispiel 6 Man arbeitet, wie im Beispiel 4 beschrieben, geht jedoch von 25,6 g 1,2-Dichlor-1-(4'-chlor-benzolsulfoxy)-äthylen aus und erhält nach Umkristallisation aus Äthanol 22,4 g 1 ,2-Dichlor-1 -(3 '-nitro4'-chlorbenzolsulfoxy)-äthylen vom F. = 83°C. Example 6 The procedure is as described in Example 4, but it is possible of 25.6 g of 1,2-dichloro-1- (4'-chloro-benzenesulfoxy) -ethylene and obtained after recrystallization from ethanol 22.4 g of 1,2-dichloro-1 - (3 '-nitro4'-chlorobenzenesulfoxy) ethylene from M.p. = 83 ° C.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von Fungiziden, dadurch gekennzeichnet, daß man 1,2-Dichlor-vinyl-aryl-sulf- oxyde oder -sulfone der Formel in der X den Sulfoxyd- oder Sulfonylrest und Rl und R2, die identisch oder verschieden sein können, Wasserstoff, Chlor, den Methyl- oder Methoxyhest darstellen, in an sich bekannter Weise zu 1,2-Dichlorvinyl-nitroaryl-sulfoxyden oder -sulfonen der Formel in der X, R1 und R2 die obige Bedeutung haben, nitriert.PATENT CLAIM Process for the preparation of fungicides, characterized in that 1,2-dichloro-vinyl-aryl-sulfoxides or sulfones of the formula in which X is the sulfoxide or sulfonyl radical and R1 and R2, which can be identical or different, represent hydrogen, chlorine, methyl or methoxy, in a manner known per se to form 1,2-dichlorovinyl-nitroaryl-sulfoxides or sulfones formula in which X, R1 and R2 have the above meaning, nitrated. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 635 396, 889 147. Considered publications: German Patent Specifications No. 635 396, 889 147.
DES53663A 1956-08-13 1957-05-28 Process for the manufacture of fungicides Pending DE1093355B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1093355X 1956-08-13

Publications (1)

Publication Number Publication Date
DE1093355B true DE1093355B (en) 1960-11-24

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ID=9616428

Family Applications (1)

Application Number Title Priority Date Filing Date
DES53663A Pending DE1093355B (en) 1956-08-13 1957-05-28 Process for the manufacture of fungicides

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DE (1) DE1093355B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE635396C (en) * 1934-05-20 1936-09-22 I G Farbenindustrie Akt Ges Process for the production of vinyl sulfoxides and vinyl sulfones
DE889147C (en) * 1942-01-30 1953-11-26 Hoechst Ag Process for the preparation of substituted aryl vinyl sulfones

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE635396C (en) * 1934-05-20 1936-09-22 I G Farbenindustrie Akt Ges Process for the production of vinyl sulfoxides and vinyl sulfones
DE889147C (en) * 1942-01-30 1953-11-26 Hoechst Ag Process for the preparation of substituted aryl vinyl sulfones

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