CH210966A - Process for the preparation of a urea derivative. - Google Patents
Process for the preparation of a urea derivative.Info
- Publication number
- CH210966A CH210966A CH210966DA CH210966A CH 210966 A CH210966 A CH 210966A CH 210966D A CH210966D A CH 210966DA CH 210966 A CH210966 A CH 210966A
- Authority
- CH
- Switzerland
- Prior art keywords
- urea derivative
- preparation
- phosgene
- pale
- chloro
- Prior art date
Links
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
- C07C309/51—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 at least one of the nitrogen atoms being part of any of the groups, X being a hetero atom, Y being any atom
Description
Verfahren zur Darstellung eines Harnstoffderivates. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Harn stoffderivates der Formel
EMI0001.0002
dadurch gekennzeichnet, dass man 2-(4"- Chlorbenzyl -amino)-4'-chlor-1,1'- diphenyl- äther-4-sulfonsäure mit Phosgen umsetzt. Das neue Harnstoffderivat bildet als Natriumsalz ein helles, gut wasserlösliches Pulver, das sich zur Verwendung als Mottenschutzmittel eignet.
<I>Beispiel:</I> 17 Teile 2-(4"-Chlorbenzyl-amino)-4'-chlor- 1,1'-diphenyläther-4-sulfonsäure werden in 250 Teilen Wasser mit der nötigen Menge 10 /oiger Sodalösung in Lösung gebracht. Zu dieser Lösung gibt man 30 Teile kristalli siertes Natriumacetat hinzu und leitet bei 40-50<B>0 0</B> Phosgen ein, bis eine Probe kein freies Amin mehr anzeigt. Hierauf wird das Natriumsalz des neuen Harnstoffderivates durch Zusatz von Kochsalz abgeschieden. Es wird nach dem Abtrennen, Trocknen und Mahlen als helles, gut wasserlösliches Pulver erhalten. Die Ausbeute ist quantitativ.
Process for the preparation of a urea derivative. The subject of the present patent is a process for the preparation of a urea derivative of the formula
EMI0001.0002
characterized in that 2- (4 "- chlorobenzylamino) -4'-chloro-1,1'-diphenyl ether-4-sulfonic acid is reacted with phosgene. The new urea derivative forms a pale, readily water-soluble powder as the sodium salt, which is suitable for use as a moth repellent.
<I> Example: </I> 17 parts of 2- (4 "-chlorobenzyl-amino) -4'-chloro-1,1'-diphenyl ether-4-sulfonic acid are dissolved in 250 parts of water with the necessary amount of 10% soda solution 30 parts of crystallized sodium acetate are added to this solution and phosgene is passed in at 40-50 0 0 until a sample no longer shows any free amine, whereupon the sodium salt of the new urea derivative is passed through After separating off, drying and grinding, it is obtained as a pale, readily water-soluble powder. The yield is quantitative.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH210966T | 1938-06-16 | ||
CH536047X | 1938-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH210966A true CH210966A (en) | 1940-08-15 |
Family
ID=25724955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH210966D CH210966A (en) | 1938-06-16 | 1938-06-16 | Process for the preparation of a urea derivative. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH210966A (en) |
-
1938
- 1938-06-16 CH CH210966D patent/CH210966A/en unknown
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