CH313082A - Process for the preparation of 2-amino-3,5-dinitro-benzene-1-sulfonic acid fluoride - Google Patents
Process for the preparation of 2-amino-3,5-dinitro-benzene-1-sulfonic acid fluorideInfo
- Publication number
- CH313082A CH313082A CH313082DA CH313082A CH 313082 A CH313082 A CH 313082A CH 313082D A CH313082D A CH 313082DA CH 313082 A CH313082 A CH 313082A
- Authority
- CH
- Switzerland
- Prior art keywords
- sulfonic acid
- dinitro
- benzene
- amino
- parts
- 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)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Verfahren zur Herstellung von 2-Amino-3, 5-dinitro-benzoll-sulfonsäureíluorid
Gegenstancl des vorliegenden Patentes ist ein Verfahren zur Herstellung von 2-Amino3, 5-dinitro-benzol-1-sulfonsäurefluorid, wel- ehes dadureh gekennzeichnet ist, dass man 2- Amino-3, 5-dinitro-benzol-1-sulfonsÏurechlori d mit einem Salz der Fluorwasserstoffsäure umsetzt.
I) as neue Snlfonsäurefluorid besitzt einen Sehmelzpunkt vonüber290 und soll als Zwi sehenprodukt zur Herstellung von Azofarb- stoffen verwendet werden.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile.
Beispiel
Eine Paste, bestehend aus 180 Teilen 2- Amino-3, 5-dinitro-benzol-1-sulfonsaurechlorid und 820 Teilen Wasser, wird zusammen mit S Teilen Natriumfluorid angerührt. Der Ansatz wird hierauf auf 80 bis 90 erwärmt ; es bildet sich ein feindisperser, leicht gelblicher Brei, welcher nach beendigter Umset- zung von der Flüssigkeit abfiltriert und chloridfrei gewaschen wird. Das gebildete 2- Amino-3, 5-dinitro-benzol-1-sulfonsäurechlorid besitz nach dem Trocknen einen Schmelz pvmkt von iiber 2. .
PATENTANSPBUCE
Verfahren zur Herstellung von 2-Amino 3, 5-dinitro-benzol-1-sulfonsäurefluorid, da- durch gekennzeichnet, dass man 2-Amino-3, S- dinitro-benzol-1-sulfonsäurechlorid mit einem Salz der Fluorwasserstoffsäure umsetzt.
Das neue Sulfonsäurefluorid besitzt einen Schmelzpunkt von über 290 und soll als Zwisehenprodukt zur Herstellung von Azofarb- stoffen verwendet werden.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
Process for the preparation of 2-amino-3, 5-dinitro-benzene-sulfonic acid fluoride
Gegenstancl of the present patent is a process for the preparation of 2-Amino3, 5-dinitro-benzene-1-sulfonic acid fluoride, which is characterized by the fact that 2-amino-3, 5-dinitro-benzene-1-sulfons -urechlori d with a hydrofluoric acid salt.
I) the new sulfonic acid fluoride has a melting point of over 290 and is intended to be used as an intermediate in the manufacture of azo dyes.
In the following example, the parts are parts by weight.
example
A paste consisting of 180 parts of 2-amino-3, 5-dinitro-benzene-1-sulfonic acid chloride and 820 parts of water is mixed with 5 parts of sodium fluoride. The batch 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-3, 5-dinitro-benzene-1-sulfonic acid chloride formed has a melting pvmkt of over 2 after drying.
PATENT ANSPBUCE
Process for the preparation of 2-amino-3, 5-dinitro-benzene-1-sulfonic acid fluoride, characterized in that 2-amino-3, S-dinitro-benzene-1-sulfonic acid chloride is reacted with a salt of hydrofluoric acid.
The new sulfonic acid fluoride has a melting point of over 290 and is intended to be used as an intermediate product 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 |
---|---|---|---|
CH313082T | 1952-12-24 | ||
CH310500T | 1952-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH313082A true CH313082A (en) | 1956-03-15 |
Family
ID=25735716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH313082D CH313082A (en) | 1952-12-24 | 1952-12-24 | Process for the preparation of 2-amino-3,5-dinitro-benzene-1-sulfonic acid fluoride |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH313082A (en) |
-
1952
- 1952-12-24 CH CH313082D patent/CH313082A/en unknown
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