CH313079A - Process for the preparation of 2-amino-5-nitro-3-chloro-benzene-1-sulfonic acid fluoride - Google Patents
Process for the preparation of 2-amino-5-nitro-3-chloro-benzene-1-sulfonic acid fluorideInfo
- Publication number
- CH313079A CH313079A CH313079DA CH313079A CH 313079 A CH313079 A CH 313079A CH 313079D A CH313079D A CH 313079DA CH 313079 A CH313079 A CH 313079A
- Authority
- CH
- Switzerland
- Prior art keywords
- sulfonic acid
- nitro
- amino
- acid fluoride
- benzene
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/78—Halides of sulfonic acids
- C07C309/86—Halides of sulfonic acids having halosulfonyl groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von 2-Amino-5-nitro-3-chlor-benzol-l-sulfonsäurefluorid
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung von 2-Amino 5-nitro-3-chlor-benzol-l-sulfonsäurefluorid, welches dadurch gekennzeichnet ist, dass man 2-Amino-5-nitro-3Wchlor-benzol-1-sulfonsäure- chlorid mit einem Salz der Fluorwasserstoff- säure umsetzt.
Das neue Sulfonsäurefluorid besitzt einen Schmelzpunkt von 132 und soll als Zwischen- produkt zur Herstellung von Azofarbstoffen verwendet werden,
Im nachfolgenden Beispiel bedeuten die Teile Gewiehtsteile.
Beispiel
Eine Paste, bestehend aus 109 Teilen 2 Amino-5-nitro-3-chlor-benzol-1-sulfonsäure- chlorid und 280 Teilen Wasser, wird zusammen mit 40 Teilen Natriumfluorid angerührt.
Der Ansatz wird hierauf auf 80 bis 90 er wärmt ; es bildet sich ein feindisperser, leicht gelblicher Brei, welcher nach beendigter Um- setzung von der Flüssigkeit abfiltriert und chloridfrei gewaschen wird. Das gebildete 2 Amino-5-nitro-3-chlor-benzol-l-sulfonsaurefluorid besitzt nach dem Trocknen einen Schmelzpunkt von 132
PATENTANSPRUCH
Verfahren zur. Herstellung von 2-Amino 5-nitro-3-chlor-benzol-l-sulfonsäureflvorid, dadurch gekennzeichnet, dass man 2-Amino-a- nitro-3-chlor-benzol-1-sulfonsäurechlorid mit einem Salz der Fluorwasserstoffsäure umsetzt.
Das neue Sulfonsäurefluorid besitzt einen Schmelzpunkt von 132 und soll als Zwischen- produkt zur Herstellung von Azofarbstoffen verwendet werden.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
Process for the preparation of 2-amino-5-nitro-3-chloro-benzene-1-sulfonic acid fluoride
The subject of the present patent is a process for the preparation of 2-amino-5-nitro-3-chlorobenzene-1-sulfonic acid fluoride, which is characterized in that 2-amino-5-nitro-3Wchlor-benzene-1-sulfonic acid chloride reacts with a salt of hydrofluoric acid.
The new sulfonic acid fluoride has a melting point of 132 and is to be used as an intermediate in the production of azo dyes.
In the following example the parts mean weight parts.
example
A paste consisting of 109 parts of 2-amino-5-nitro-3-chlorobenzene-1-sulfonic acid chloride and 280 parts of water is mixed together with 40 parts of sodium fluoride.
The approach is then heated to 80 to 90; A finely divided, slightly yellowish pulp is formed which, when the reaction is complete, is filtered off from the liquid and washed free of chloride. The 2 amino-5-nitro-3-chloro-benzene-1-sulfonic acid fluoride formed has a melting point of 132 after drying
PATENT CLAIM
Procedure for. Preparation of 2-amino-5-nitro-3-chlorobenzene-1-sulfonic acid fluoride, characterized in that 2-amino-a-nitro-3-chlorobenzene-1-sulfonic acid chloride is reacted with a salt of hydrofluoric acid.
The new sulfonic acid fluoride has a melting point of 132 and is to be used as an intermediate in the manufacture of azo dyes.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH310500T | 1952-12-24 | ||
CH313079T | 1952-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH313079A true CH313079A (en) | 1956-03-15 |
Family
ID=25735713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH313079D CH313079A (en) | 1952-12-24 | 1952-12-24 | Process for the preparation of 2-amino-5-nitro-3-chloro-benzene-1-sulfonic acid fluoride |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH313079A (en) |
-
1952
- 1952-12-24 CH CH313079D patent/CH313079A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH313079A (en) | Process for the preparation of 2-amino-5-nitro-3-chloro-benzene-1-sulfonic acid fluoride | |
CH313081A (en) | Process for the preparation of 2-amino-5-nitro-3-trifluoromethyl-benzene-1-sulfonic acid fluoride | |
CH313082A (en) | Process for the preparation of 2-amino-3,5-dinitro-benzene-1-sulfonic acid fluoride | |
CH313080A (en) | Process for the preparation of 2-amino-5-nitro-3-methyl-benzene-1-sulfonic acid fluoride | |
DE823738C (en) | Process for the production of o-aminothiophenol or its alkali salts | |
CH136040A (en) | Process for the preparation of a new dye intermediate. | |
CH258770A (en) | Process for the production of a new vat dye. | |
CH189302A (en) | Process for the production of a new textile auxiliary. | |
CH230412A (en) | Process for the production of a new condensation product. | |
CH207449A (en) | Process for the preparation of a condensation product. | |
CH308450A (en) | Process for the preparation of the leuco-sulfuric acid ester of an anthraquinone-azo dye. | |
CH207451A (en) | Process for the preparation of a condensation product. | |
CH269340A (en) | Process for the representation of a basic ether. | |
CH207452A (en) | Process for the preparation of a condensation product. | |
CH276620A (en) | Process for the preparation of p-amino-salicylic acid-n-propylamide. | |
CH207450A (en) | Process for the preparation of a condensation product. | |
CH364792A (en) | Process for the preparation of 1-amino-naphthalene-7-sulfonic acid | |
CH120257A (en) | Process for the preparation of a new oxynaphthalene carboxylic acid. | |
CH269709A (en) | Process for the preparation of a phthalocyanine series dye. | |
CH192016A (en) | Process for the production of chrysene-2-carboxylic acid. | |
CH274850A (en) | Process for the production of a new pigment of the dioxazine series. | |
CH307878A (en) | Process for the preparation of a bactericidal salicylanilide. | |
CH126337A (en) | Process for the preparation of a dinaphthyl dicarboxylic acid. | |
CH281974A (en) | Process for the preparation of a new intermediate dye. | |
CH176362A (en) | Process for the production of an indigoid dye. |