CH155003A - Process for the preparation of 3.4.6-trimethyl-5-chloro-1-aminobenzene-2-sulfonic acid. - Google Patents
Process for the preparation of 3.4.6-trimethyl-5-chloro-1-aminobenzene-2-sulfonic acid.Info
- Publication number
- CH155003A CH155003A CH155003DA CH155003A CH 155003 A CH155003 A CH 155003A CH 155003D A CH155003D A CH 155003DA CH 155003 A CH155003 A CH 155003A
- Authority
- CH
- Switzerland
- Prior art keywords
- trimethyl
- chloro
- acid
- preparation
- sulfonic acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000002253 acid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 claims description 4
- 239000003085 diluting agent Substances 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 230000007717 exclusion Effects 0.000 claims description 2
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- ACHUDPKPXIEHAD-UHFFFAOYSA-N 2-amino-6-chlorobenzenesulfonic acid Chemical compound NC1=CC=CC(Cl)=C1S(O)(=O)=O ACHUDPKPXIEHAD-UHFFFAOYSA-N 0.000 description 1
- -1 Trimethyl-6-chloro-1-amino-benzene-2-sulfonic acid Chemical compound 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung von 3. 4. 6.Trimethyl-6-ehlor-l-amino-benzol-2-sulfosäure. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung von 3.4.6-Tri- methyl-5-:chlor -1-amino-benzol-2-sulfosäure, das dadurch gekennzeichnet ist, dass man 3.4.6-Trimethyl-5-chlor-1-amirro-benzol mit molekularen Mengen Halogensulfonsäure, zweckmässig in Gegenwart eines Verdünnungs mittels, unter Ausschluss von Wasser be handelt.
<I>Beispiel:</I> 169,5 Gewichtsteile 3. 4.6-Trimethyl-5- chlor-l-amino-benzol werden in ca. 1500 Ge wichtsteilen Nitrobenzol gelöst. Unter kräfti gem Rühren und unter guter Kühlung tropfen dazu 100 Gewichtsteile Fluorsulfonsäure; man rührt einige Zeit nach und erhitzt dann langsam auf 160-170 C. Apparatur und sonstige Arbeitsbedingungen sind dieselben wie im Beispiel des Hauptpatentes angegeben.
Die erhaltene 3.4. 6 - Trimethyl- 5 - chlor- 1-amino-benzol-2-sulfosäure stellt nach dem Absaugen und Trocknen ein farbloses Pulver dar, das in Wasser schwer, in Soda leicht löslich ist und eine in Wasser schwer lös liche Diazoverbindung ergibt. Die neue Säure soll als Zwischenprodukt für den Aufbau von Farbstoffen Verwendung finden.
Process for the preparation of 3. 4. 6. Trimethyl-6-chloro-1-amino-benzene-2-sulfonic acid. The subject of this additional patent is a process for the preparation of 3.4.6-trimethyl-5-: chloro-1-amino-benzene-2-sulfonic acid, which is characterized in that 3.4.6-trimethyl-5-chloro-1 -amirro-benzene with molecular amounts of halosulfonic acid, expediently in the presence of a diluent, with the exclusion of water.
<I> Example: </I> 169.5 parts by weight 3. 4,6-trimethyl-5-chloro-1-amino-benzene are dissolved in approx. 1500 parts by weight of nitrobenzene. 100 parts by weight of fluorosulfonic acid are added dropwise with vigorous stirring and with good cooling; the mixture is stirred for a while and then slowly heated to 160-170 C. Apparatus and other working conditions are the same as those given in the example of the main patent.
The received 3.4. 6 - Trimethyl- 5 - chloro-1-aminobenzene-2-sulfonic acid is a colorless powder after suction and drying, which is sparingly soluble in water, easily soluble in soda and results in a diazo compound sparingly soluble in water. The new acid is said to be used as an intermediate in the synthesis of dyes.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE155003X | 1930-04-04 | ||
| CH151675T | 1930-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH155003A true CH155003A (en) | 1932-05-31 |
Family
ID=25715857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH155003D CH155003A (en) | 1930-04-04 | 1931-03-31 | Process for the preparation of 3.4.6-trimethyl-5-chloro-1-aminobenzene-2-sulfonic acid. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH155003A (en) |
-
1931
- 1931-03-31 CH CH155003D patent/CH155003A/en unknown
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