DE426476C - Process for the preparation of diphenylene sulfide - Google Patents
Process for the preparation of diphenylene sulfideInfo
- Publication number
- DE426476C DE426476C DESCH68235D DESC068235D DE426476C DE 426476 C DE426476 C DE 426476C DE SCH68235 D DESCH68235 D DE SCH68235D DE SC068235 D DESC068235 D DE SC068235D DE 426476 C DE426476 C DE 426476C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- diphenylene sulfide
- diphenylene
- sulfide
- halogen
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D333/76—Dibenzothiophenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von Diphenylensulfid. In den Berichten 2¢ [18911 Seite 763 ist die Einwirkung eines' halogenhaltigen wasserentziehenden Mittels (Phosphorpentachlorid) auf Diphenylsulfoxvd beschrieben. Diese Einwirkung führte nicht zum Diphenylensulfid. Man erhält jedoch Diphenylensulfid, wenn man mit halogenfreiem wasserentziehenden Mittel arbeitet. .Process for the preparation of diphenylene sulfide. In the reports 2 ¢ [18911 page 763 is the action of a 'halogen-containing dehydrating agent (Phosphorus pentachloride) described on Diphenylsulfoxvd. This impact resulted not to diphenylene sulfide. However, diphenylene sulfide is obtained when using halogen-free dehydrating agent works. .
r. Beispiel.r. Example.
1 Mol. Diphenylsulfoxyd wird in Toluol mit i Mol. Natriumamid 2 Stunden gekocht, die Lösung vom Festen abgetrennt und das Toluol verjagt; es hinterbleibt Diphenylensulfid in einer Ausbeute von 50 Prozent.1 mole of diphenyl sulfoxide is boiled in toluene with 1 mole of sodium amide for 2 hours, the solution is separated from the solid and the toluene is driven off; what remains is diphenylene sulfide in a yield of 50 percent.
z. Beispiel.z. Example.
Main arbeitet wie im Beispiel i, ersetzt jedoch das Natriumamld durch I£aliumamid. 3. Beispiel.Main works as in example i, but replaces the sodium amld with I £ aliumamid. 3rd example.
Man erwärmt ägnimolekulare Mengen Phosphorpentoxyds und Diphenylsulfoxyds, bis Reaktion eintritt, steigert dann die Temperatur nicht mehr, sondern wartet, bis die Reaktion beendigt ist. Man läßt erkalten und zieht die Schmelze mit Benzol aus. Die Benzollösung liefert beim Verjagen des Benzols das Diphenylensulfid. Die Ausbeute ist schlechter als nach Beispiel 1.One heats equal amounts of phosphorus pentoxide and diphenylsulphoxide, until reaction occurs, then the temperature no longer increases, but waits, until the reaction is complete. It is allowed to cool and the melt is drawn in with benzene the end. The benzene solution provides the diphenylene sulfide when the benzene is driven off. the Yield is worse than according to Example 1.
Das Diphenylensulfid soll als Zwischenprodukt für die'Herstellung von Farbstoffen sowie für pharmazeutische Zwecke Verwendung finden.The diphenylene sulfide is said to be an intermediate for the manufacture of dyes and for pharmaceutical purposes.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH68235D DE426476C (en) | 1923-07-17 | 1923-07-17 | Process for the preparation of diphenylene sulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH68235D DE426476C (en) | 1923-07-17 | 1923-07-17 | Process for the preparation of diphenylene sulfide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE426476C true DE426476C (en) | 1926-03-09 |
Family
ID=7439364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH68235D Expired DE426476C (en) | 1923-07-17 | 1923-07-17 | Process for the preparation of diphenylene sulfide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE426476C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499186A (en) * | 1948-06-17 | 1950-02-28 | Gen Electric | 2-vinyldibenzothiophene and method of preparing the same |
-
1923
- 1923-07-17 DE DESCH68235D patent/DE426476C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499186A (en) * | 1948-06-17 | 1950-02-28 | Gen Electric | 2-vinyldibenzothiophene and method of preparing the same |
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