CH285366A - Process for the preparation of an aldehyde. - Google Patents
Process for the preparation of an aldehyde.Info
- Publication number
- CH285366A CH285366A CH285366DA CH285366A CH 285366 A CH285366 A CH 285366A CH 285366D A CH285366D A CH 285366DA CH 285366 A CH285366 A CH 285366A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- aldehyde
- parts
- ammonia
- marked
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 title claims 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 150000001845 chromium compounds Chemical class 0.000 claims description 2
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 150000004820 halides Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 125000006414 CCl Chemical group ClC* 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- -1 carbon halide Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Verfahren zur Herstellung eines</B> Aldehydes. Es wurde gefunden, dass man zu einem wertvollen Aldehyd gelangt, wenn man zwei 31o1 Cyanurhalogenid mit einem Mol 4,4'-Di- aminostilbc:n-2,2'-disulfonsäure, zwei Mol 3- :Xniino-1-iienzalclehvd und zwei Mol Ammo niak kondensiert.
Der neue Mclehyd besitzt Affinität zur Wollfaser und kann als Hilfsmittel beim Fär ben mit sauer färbbaren komplexen Chrom verbindungen von o-(-)xp-o'-aminoazofarbstoi- fen verwendet werden.
:11s ('vatitii-lialogenid wird beine vorliegen den \'erfahren mit Vorteil Cyanurehlorid ver wendet. Die Kondensation wird zweckmässig so aus < efiihrt, dass man zuerst. nacheinander die leiden aromatischen Amine mit dem Cca- nurhalogrenid kondensiert und das Ammoniak wit den, beiden letzten verbleibenden j C-Cl. Resten umsetzt.
Iin übrigen können die Kon- densationsreaktionen naeli üblieben, an sich bekannten Methoden durchgeführt werden, z.
B. in wässeri@@em lIediuni. und mit Vorteil unter Zusatz von säurebindenden Mitteln. Wie dies bei Kondensationen mit Cj-anurha.logeni- den im allgemeinen üblich ist., empfiehlt es siele auch im vorliegenden Falle, die Reaktions- tenilteratiu,
von der eisten his zur dritten 1\nisetzting stufenweise zu erhöhen. <I>Beispiel:</I> l#',ine laekmtisneuti-al reagierende Lösung von ; 7 Teilen 4,4'-diaininostilben-'3,2'-disulfon- saurem Natrium in 300 Teilen Wasser lässt man innert. 60 :Minuten zu einer Suspension von 36 Teilen Cvanurehlorid in 1600 Teilen Wasser zutropfen, wobei die Temperatur durch indirekte Kühlung auf 0 bis 5 gehal ten wird.
Es wird fortlaufend verdünnte N a- triuinearbonatlösung zugegeben, so dass das Reaktionsgemiseli immer schwach mineralsauer reagiert. Nach etwa 3 Stunden ist. die zur Kondensation theoretisch benötigte Menge von 10,6 Teilen Natriumearbonat verbraucht.
Nun lä.sst man innert 30 Minuten zu dem so erhal tenen Reaktionsgemisch eine Lösung einlau fen, die man durch Auflösen von 24,2 Teilen 3-Amino-l-benzaldehvd in 1200 Teilen Wasser in der Wärme unter Zusatz von 23 Teilen 30 /oiger Salzsäure und nachträgliches Ab kühlen auf 60 erhalten hat. Es dauert etwa 7 2 Stunden, bis die zur Kondensation theo retisch benötigte Menge von '1.,2 Teilen Na- triumearbonat verbraucht ist.
Dem Reaktions gemisch werden 1.3 Teile 27 /o iges wässeriges Ammoniak zugesetzt und das Ganze innert einer Stunde auf 96 bis 98 erwärmt. Es tritt blei bend schwach alkalische Reaktion auf, und die anfangs gelatinöse Masse wird kristallin.
Man hält eine halbe Stunde bei 96 bis 98", filtriert von spurenweise vorhandenen Verunreinigun- gen ab, setzt dann -100 Teile Natriumehlorid zu, lä.sst abkühlen und filtriert das ausgeschie dene Natriumsalz bei Zimmertemperatur ab. Der so erhaltene Körper kann nötigenfalls durch I\mkristallisieren aus Wasser gereinigt werden.
<B> Process for the production of </B> an aldehyde. It has been found that a valuable aldehyde is obtained if two 31o1 cyanuric halide are mixed with one mole of 4,4'-di-aminostilbc: n-2,2'-disulfonic acid, two moles of 3-: Xniino-1-iienzalclehvd and two Mol of ammonia condensed.
The new Mclehyd has an affinity for wool fibers and can be used as an aid when dyeing with acid-dyeable complex chromium compounds of o - (-) xp-o'-aminoazo dyes.
: 11s ('vatitii-halide is used in the presence of the experienced cyanuric chloride with advantage. The condensation is expediently carried out in such a way that first, one after the other, the aromatic amines are condensed with the carbon halide and the ammonia is added, two last remaining j C-Cl.
Otherwise, the condensation reactions can normally be carried out using methods known per se, e.g.
B. in wasseri @@ em lIediuni. and with advantage with the addition of acid-binding agents. As is generally customary in the case of condensations with Cj-anurha.logicians, it is also recommended in the present case to
from the first to the third 1 \ nisetzting to increase gradually. <I> Example: </I> l # ', ine laekmtisneuti-al reactive solution of; 7 parts of 4,4'-diaininostilbene-'3,2'-disulfonic acid sodium in 300 parts of water are left inside. 60: minutes to a suspension of 36 parts of Cvanurehlorid in 1600 parts of water, the temperature is held to 0 to 5 th by indirect cooling.
Dilute sodium carbonate solution is continuously added so that the reaction mixture always reacts with a weak mineral acid. After about 3 hours it is. the amount of 10.6 parts of sodium carbonate theoretically required for condensation is consumed.
Now, within 30 minutes, a solution is run in to the reaction mixture obtained in this way, which is obtained by dissolving 24.2 parts of 3-amino-1-benzaldehyde in 1200 parts of water while warming with the addition of 23 parts of 30% Hydrochloric acid and subsequent cooling to 60 has received. It takes about 72 hours until the theoretically required amount of 1, 2 parts of sodium carbonate for condensation is used up.
1.3 parts of 27% aqueous ammonia are added to the reaction mixture and the whole is heated to 96 to 98 within one hour. A persistent, weakly alkaline reaction occurs and the initially gelatinous mass becomes crystalline.
It is held at 96 to 98 "for half an hour, traces of impurities are filtered off, 100 parts of sodium chloride are then added, the mixture is allowed to cool and the sodium salt which has separated out is filtered off at room temperature \ mcrystallize from water.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH285366T | 1948-03-12 | ||
| CH264600T | 1948-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH285366A true CH285366A (en) | 1952-08-31 |
Family
ID=25730749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH285366D CH285366A (en) | 1948-03-12 | 1948-03-12 | Process for the preparation of an aldehyde. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH285366A (en) |
-
1948
- 1948-03-12 CH CH285366D patent/CH285366A/en unknown
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