DE170630C - - Google Patents
Info
- Publication number
- DE170630C DE170630C DENDAT170630D DE170630DA DE170630C DE 170630 C DE170630 C DE 170630C DE NDAT170630 D DENDAT170630 D DE NDAT170630D DE 170630D A DE170630D A DE 170630DA DE 170630 C DE170630 C DE 170630C
- Authority
- DE
- Germany
- Prior art keywords
- naphthylamine
- sulfonic acid
- solution
- hydrochloric acid
- heated
- 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.)
- Active
Links
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 150000004982 aromatic amines Chemical class 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- -1 naphthylamine sulfonic acids Chemical class 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-Naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000005002 naphthylamines Chemical group 0.000 description 1
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N sulfonic acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
- C07C309/47—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton having at least one of the sulfo groups bound to a carbon atom of a six-membered aromatic ring being part of a condensed ring system
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Darstellung der alphylierten Naphtylaminsulfosäuren erfolgte bisher, abgesehen von der Sulfurierung der sekundären Naphtylamine, in der Weise, daß die entsprechenden Naphtoi- oder Naphtylaminsulfosäuren mit einem aromatischen Amin in Gegenwart des salzsauren Salzes des betreffenden Amins längere Zeit im offenen Gefäße auf höhere Temperatur erhitzt wurden. Zur Förderung dieserThe representation of the alphylated naphthylamine sulfonic acids has been carried out so far, apart from the sulfurization of the secondary naphthylamines, in such a way that the corresponding naphthoi- or naphthylamine sulfonic acids with a aromatic amine in the presence of the hydrochloric acid salt of the amine in question longer Time in open vessels were heated to a higher temperature. To promote this
ίο unter Wasser- bezw. Ammoniakabspaltung vor sich gehenden Reaktion sind verschiedene Zusätze zu dem Reaktionsgemische (Chlorzink, Benzoesäure usw.) empfohlen worden. Immerhin verläuft der Prozeß nie glatt und die Ausbeuten an den substituierten Naphtylaminsulfosäuren bleiben ziemlich hinter der theoretisch möglichen zurück. Im besonderen ist dies auch der Fall bei der Darstellung der technisch wichtigen Phenyl- oder ToIyI-O1-Naphtylamin-a4-sulf osäure nach dem Verfahren der Patentschrift 70349 der Kl. 22. Zudem ist das unmittelbar erhaltene Produkt nicht rein, sondern bedarf, wie auch dem Beispiel jenes Patentes zu entnehmen ist, zur Reindarstellung einer Trennung von verunreinigenden Produkten durch Umkristallisieren.ίο under water or Various additives to the reaction mixture (zinc chloride, benzoic acid, etc.) have been recommended as the reaction takes place. After all, the process never runs smoothly and the yields of the substituted naphthylamine sulfonic acids remain rather below those theoretically possible. In particular, this is also the case in the preparation of the technically important phenyl- or ToIyI-O 1 -naphthylamine-a 4 -sulfonic acid by the process of patent specification 70349 of class 22. In addition, the product immediately obtained is not pure, but required As can also be seen from the example of that patent, for the pure representation of a separation of contaminating products by recrystallization.
Es wurde nun gefunden, daß man die Monoalphyl-«.j - Naphtylamin-a4-sulf osäure in glatter Weise dadurch erhalten kann, daß man die 04-Naphtylamin-o^-sulfosäure mit den entsprechenden aromatischen Aminen und deren salzsauren Salzen in Wasser löst und hierauf entweder in offenen Gefäßen unter Rückfluß kocht oder in geschlossenen Gefäßen auf höhere Temperaturen erhitzt.It has now been found that the monoalphyl - «. J - naphthylamine-a 4 -sulfonic acid can be obtained in a smooth manner by adding the O4-naphthylamine-o ^ -sulfonic acid with the corresponding aromatic amines and their hydrochloric acid salts in water dissolves and then either boils under reflux in open vessels or heated to higher temperatures in closed vessels.
Bei Ausführung des Verfahrens kann man so vorgehen, daß man die Naphtylaminsulfosäure in Wasser suspendiert, mit einem Überschuß eines Amins und alsdann unter Rühren mit Salzsäure bis zur klaren Lösung versetzt und hierauf erhitzt.In carrying out the process, one can proceed in such a way that one uses the naphthylamine sulfonic acid suspended in water, with an excess of an amine and then under Stir mixed with hydrochloric acid until the solution is clear and then heated.
Nach diesem Verfahren erhält man z. B. die Phenyl- oder p-Tolyl-ttj-Naphtylamin-^- sulfosäüre in guter Ausbeute und in reiner Form, so daß sie unmittelbar zur Darstellung von Farbstoffen verwendet werden kann.According to this method, z. B. the phenyl or p-tolyl-ttj-naphtylamine - ^ - sulfonic acid in good yield and in pure form, so that it is immediately available for presentation of dyes can be used.
I. 49,1 kg U1- Naphtylamin -a4-sulfosäure (von 91 Prozent) werden in 400 1 kochendem Wasser suspendiert, mit 150 kg ρ-Toluidin versetzt und durch Zusatz von etwa 100 kg Salzsäure von 22 ° Be. in Lösung gebracht. Diese Lösung erhitzt man 15 Stunden auf 1500C. im geschlossenen Gefäße. Nach dem Erkalten wird die Schmelze mit etwa 60 kg Soda alkalisch gemacht, mit 250 1 Wasser verdünnt und das nicht in Reaktion getretene p-Toluidin durch Wasserdampf abdestilliert. Man filtriert hierauf und salzt aus dem Filtrate die entstandene Ct1-p-Tölyl-Naphtylamin-a4-sulfosäure aus. Im übrigen kann auch die unmittelbar erhaltene Lösung zur Farbstoffdarstellung verwendet werden. Anstatt im geschlossenen Gefäße auf 1500 zu erhitzen, kann man auch unter Rückfluß kochen, doch erfordert diese Ausführungsform eine längere Zeitdauer. I. 49.1 kg of U 1 - naphthylamine-a 4 -sulfonic acid (of 91 percent) are suspended in 400 l of boiling water, 150 kg of ρ-toluidine are added and about 100 kg of hydrochloric acid of 22 ° Be. brought into solution. This solution is heated to 150 ° C. in a closed vessel for 15 hours. After cooling, the melt is made alkaline with about 60 kg of soda, diluted with 250 l of water and the p-toluidine which has not reacted is distilled off by steam. It is then filtered and the resulting Ct 1 -p-Tölyl-naphthylamine-a 4 -sulfonic acid is salted out from the filtrate. In addition, the solution obtained immediately can also be used for the preparation of the dye. Instead of heat in a closed vessel at 150 0, you can also cook at reflux, but this embodiment requires a longer period of time.
II. 98,2 kg der obigen aj-Naphtylamin-a4-sulf osäure werden in kochendem WasserII. 98.2 kg of the above aj-naphthylamine-a 4 -sulfonic acid are in boiling water
suspendiert, mit 270 kg Anilin versetzt und durch Zusatz von 150 kg Salzsäure von 22° Be. in Lösung gebracht, hierauf in einem Autoklaven 20 Stunden auf 140° erhitzt. Die Aufarbeitung der Reaktionsmasse erfolgt dann weiter wie im Beispiel I angegeben.suspended, treated with 270 kg of aniline and by adding 150 kg of hydrochloric acid 22 ° Be. brought into solution, then heated to 140 ° in an autoclave for 20 hours. the The reaction mass is then worked up further as indicated in Example I.
In ähnlicher Weise erfolgt die Ausführung des Verfahrens unter Verwendung von 0-T0-luidin oder Xylidin.Similarly, the procedure is carried out using O-T0-luidine or xylidine.
Claims (1)
. Verfahren zur Darstellung der Monoalphyl -U1- Naphtylamin - ai - sulfosäuren, darin bestehend, daß man das Gemisch der U1- Naphtylamin -a4-sulfosäure mit einem aromatischen Amin in verdünnter wässeriger Salzsäure löst und diese Lösung vorteilhaft unter Druck auf höhere Temperaturen erhitzt.Patent claim:
. Process for the preparation of the monoalphyl -U 1 -naphthylamine- a i -sulfonic acids, consisting in that the mixture of the U 1 -naphthylamine-a 4 -sulfonic acid with an aromatic amine is dissolved in dilute aqueous hydrochloric acid and this solution is advantageously increased under pressure Temperatures heated.
Publications (1)
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DE170630C true DE170630C (en) |
Family
ID=435660
Family Applications (1)
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Country Status (1)
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