CH308396A - Process for the preparation of a fluorescent heterocyclic compound. - Google Patents
Process for the preparation of a fluorescent heterocyclic compound.Info
- Publication number
- CH308396A CH308396A CH308396DA CH308396A CH 308396 A CH308396 A CH 308396A CH 308396D A CH308396D A CH 308396DA CH 308396 A CH308396 A CH 308396A
- Authority
- CH
- Switzerland
- Prior art keywords
- aminoacetophenone
- heterocyclic compound
- preparation
- fluorescent
- cinnamoyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/32—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung einer fluoreszierenden heterocyclischen Verbindung. Das Hauptpatent betrifft ein Verfahren zur Herstellung einer fluoreszierenden hetero cycliselien Verbindung, dadurch gekennzeich net, dass man 2 Mol co-Aminoacetophenon mit 1.
Mol Tereplithaloylchlorid acyliert, das er haltene Terephthaloyl-di-o-)-aminoacetophenon mit kondensierenden Mitteln, wie Schwefel säure, in das entsprechende Bisoxazol über führt und dieses sulfoniert, wobei eine Di- sulfosäure erhalten wird.
Vorliegendes Patent bezieht sieh nun auf ein Verfahren zur Herstellung einer fluores zierenden heterocyclischen Verbindung, da durch gekennzeichnet, dass man das aus Aminoacetophenon und Cinnamoylchlorid er haltene Cinnamoyl-co-aminoacetophenon mit Oleum erhitzt, wobei disulfiertes 2-Styryl-5- phenyloxazol entsteht.
Das Natriumsalz der so erhaltenen Disul- fonsäure stellt ein gelblichweisses Pulver dar, dessen wässrige Lösungen den damit behandel ten Materialien, z. B. Wollgarn, einen schönen wasehbeständigen Weisston verleihen.
<I>Beispiel:</I> Teile des aus Aminoacetophenon und Cinnamoylehlorid erhaltenen Cinnamoyl-co- aminoacetophenon werden mit 50 Teilen 10 % igem Oleum unter Rühren 3 Stunden auf 70 eiiv ärmt. Das Sulfierungsgemiseh wird naeh dem Erkalten unter Rühren auf Eis ge gossen und das ausgeschiedene Produkt ab- gesaugt.
Es ist eine Disulfosäure des 2-Styryl- 5-phenyloxazols.
Durch Neutralisieren mit verdünnter Na tronlauge und Eindampfen erhält man das Natriumsalz dieser Disulfosäure als gelblich weisses Pulver, das in verdünnten wässrigen Lösungen eine starke blaue Fluoreszenz zeigt.
Behandelt man Wollgarn mit 0,1% (be- zogen auf Garngewicht) dieses Natriumsalzes in wässriger Lösung bei einem Flottenverhält- nis von 1 :
30 unter Zusatz von 3 % Essigsäure während 30 Minuten bei 50 , so zeigt das so behandelte Garn gegenüber dem unbehandel ten einen wesentlich schöneren Weisston, der sehr waschbeständig ist.
Process for the preparation of a fluorescent heterocyclic compound. The main patent relates to a process for the production of a fluorescent heterocyclic compound, characterized in that 2 moles of co-aminoacetophenone are mixed with 1.
Acylated mole of terephthaloyl chloride, which he obtained terephthaloyl-di-o -) - aminoacetophenone with condensing agents, such as sulfuric acid, into the corresponding bisoxazole and sulfonated it, a disulfonic acid being obtained.
The present patent now relates to a process for the preparation of a fluorescent heterocyclic compound, characterized in that the cinnamoyl-co-aminoacetophenone obtained from aminoacetophenone and cinnamoyl chloride is heated with oleum to form disulfated 2-styryl-5-phenyloxazole.
The sodium salt of the disulfonic acid obtained in this way is a yellowish-white powder, the aqueous solutions of which correspond to the materials treated therewith, e.g. B. woolen yarn, give a beautiful wash-resistant white tone.
<I> Example: </I> Parts of the cinnamoyl-co-aminoacetophenone obtained from aminoacetophenone and cinnamoylechloride are heated to 70 eggs for 3 hours with 50 parts of 10% oleum while stirring. After cooling, the sulphonation mixture is poured onto ice while stirring and the precipitated product is filtered off with suction.
It is a disulfonic acid of 2-styryl-5-phenyloxazole.
By neutralizing with dilute sodium hydroxide solution and evaporation, the sodium salt of this disulfonic acid is obtained as a yellowish white powder which shows a strong blue fluorescence in dilute aqueous solutions.
If wool yarn is treated with 0.1% (based on yarn weight) of this sodium salt in aqueous solution with a liquor ratio of 1:
30 with the addition of 3% acetic acid for 30 minutes at 50, the yarn treated in this way shows a much nicer white tone compared to the untreated th, which is very washable.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE308396X | 1951-03-17 | ||
CH304715T | 1952-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH308396A true CH308396A (en) | 1955-07-15 |
Family
ID=28042584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH308396D CH308396A (en) | 1951-03-17 | 1952-03-14 | Process for the preparation of a fluorescent heterocyclic compound. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH308396A (en) |
-
1952
- 1952-03-14 CH CH308396D patent/CH308396A/en unknown
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