CH148351A - Process for the preparation of an m-oxy-phenylarylamine carboxylic acid. - Google Patents
Process for the preparation of an m-oxy-phenylarylamine carboxylic acid.Info
- Publication number
- CH148351A CH148351A CH148351DA CH148351A CH 148351 A CH148351 A CH 148351A CH 148351D A CH148351D A CH 148351DA CH 148351 A CH148351 A CH 148351A
- Authority
- CH
- Switzerland
- Prior art keywords
- oxy
- carboxylic acid
- preparation
- phenylarylamine
- dimethyldiphenylamine
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- 230000001476 alcoholic effect Effects 0.000 claims description 2
- 150000001447 alkali salts Chemical class 0.000 claims description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung einer m-Ogy-phenylarylaminearbonsfiure. Vorliegendes Patent bezieht sich auf ein Verfahren zur Herstellung einer m-Oxy-phenyl- arylamincar,bonsäure, dadurch gekennzeichnet, dass man ein Alkalisalz von 3-Oxy-2'4'-dime- thyldiphenylamin mit Kohlensäure unter Druck erhitzt.
Die 3-Oxy-2'4'-dimethyldiphenylamin- carbonsäure ist ein grauviolettes Pulver, das nach dem Umkristallisieren aus Benzol den Schmelzpunkt<B>1750</B> C zeigt. Ihre alkoholische Lösung gibt mit verdünnter Eisenchlorid lösung eine intensive violette Färbung. Das Produkt soll als Zwischenprodukt zur Her stellung vor) Farbstoffen verwendet werden.
<I>Beispiel:</I> 1278 Teile 3 - Oxy-2'4'-dimethyldiphenyl- amin werden mit 390,8 Teilen Ätzkali, 83,8o/oig und 2000 Teilen Wasser in einem mit Rühr werk versehenen Autoklaven in Lösung ge bracht und das Wasser im Vakuum bis zur völligen Trockenheit des gebildeten Kalium salzes abdestilliert. Nach dem Erkalten der Reaktionsmasse leitet man Kohlensäure bis zu einem Druck von 10 Atmosphären ein und erhitzt auf 170 o während 16 Stunden. Die erkaltete Schmelze wird in heissem Wasser gelöst, filtriert und die gebildete Carbonsäure mit Salzsäure gefällt.
Zur weitem Reinigung kann dieselbe aus Soda oder Natriumacetat umgelöst werden.
Process for the preparation of a m-Ogy-phenylarylaminearboxylic acid. The present patent relates to a process for the production of an m-oxy-phenyl-arylamine-carboxylic acid, characterized in that an alkali salt of 3-oxy-2'4'-dimethyldiphenylamine is heated with carbonic acid under pressure.
The 3-oxy-2'4'-dimethyldiphenylamine carboxylic acid is a gray-violet powder which has a melting point of 1750 C after recrystallization from benzene. Their alcoholic solution gives an intense purple color with a dilute ferric chloride solution. The product is intended to be used as an intermediate for the manufacture of pre) dyes.
<I> Example: </I> 1278 parts of 3-oxy-2'4'-dimethyldiphenylamine are dissolved with 390.8 parts of caustic potash, 83.8% and 2000 parts of water in an autoclave equipped with a stirrer brought and the water was distilled off in vacuo until the potassium salt formed was completely dry. After the reaction mixture has cooled down, carbonic acid is introduced up to a pressure of 10 atmospheres and the mixture is heated to 170 ° for 16 hours. The cooled melt is dissolved in hot water, filtered and the carboxylic acid formed is precipitated with hydrochloric acid.
For further cleaning it can be redissolved from soda or sodium acetate.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE148351X | 1928-12-01 | ||
| CH146551T | 1929-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH148351A true CH148351A (en) | 1931-07-15 |
Family
ID=25714888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH148351D CH148351A (en) | 1928-12-01 | 1929-11-13 | Process for the preparation of an m-oxy-phenylarylamine carboxylic acid. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH148351A (en) |
-
1929
- 1929-11-13 CH CH148351D patent/CH148351A/en unknown
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