CH299708A - Process for the production of a condensation product. - Google Patents
Process for the production of a condensation product.Info
- Publication number
- CH299708A CH299708A CH299708DA CH299708A CH 299708 A CH299708 A CH 299708A CH 299708D A CH299708D A CH 299708DA CH 299708 A CH299708 A CH 299708A
- Authority
- CH
- Switzerland
- Prior art keywords
- condensation product
- production
- compound
- product
- chlorophenoxy
- 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
- C07C309/41—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing singly-bound oxygen atoms bound to the carbon skeleton
- C07C309/42—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing singly-bound oxygen atoms bound to the carbon skeleton having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Kondensationsproduktes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Kondensa tionsproduktes der wahrscheinlichen Formel
EMI0001.0004
dadurch gekennzeichnet, dass man den bei spielsweise aus m-Trifltiormethyl-phenyl-iso- eya.nat und (2-Sulfo-4-chlor-phenoxy)-anilin hergestellten N-m-Trifluormethyl-phenyl-N'-2- (2' - sulfo - 4' - ehlorphenoxy)
-pheny l - harnstoff chloriert und das Chlorierungsprodukt mit einer Natriumverbindung in das Natriumsalz überführt.
Als Chlorierungsmittel kommen beispiels weise Chlorgas (mit oder ohne Katalysator), Chlorkalk, unterehlorige Säure usw. in Frage.
Durch die Chlorierung, z. B. mit Chlor in hises5ig, werden zwei Atome Chlor in das Molekül eingeführt, wobei wahrscheinlich die Verbindung der Formel I entsteht. Diese bil det ein weisses, in heissem Wasser klar lösliches kristallines Pulver, das als Mottenschutzmit- i e1 verwendet werden kann.
Beispiel: 100 'feile des N-m-Trifluormetliyl-plienyl- N'-2- (2'-sttlfo-4' - chlorphenoxy) - plienyl - harn stoffes werden in 600 Teilen Eisessig gelöst und bei etwa 10 während einigen Stunden mit Chlorgas gesättigt. Der Eisessig wird zum grössten Teil ab destilliert und der Rückstand mit etwa 25o/oiger Natronlauge schwach alkalisch gestellt, wobei die Verbindung ölig ausfällt. Die überste hende Lösung wird abdekantiert und das Öl in 10 000 Teilen Wasser von 95 gelöst und mit wenig Kohle filtriert.
Durch Zusatz von ge sättigter Kochsalzlösung und Stehenlassen über Nacht wird die Verbindung in befriedi gender Reinheit erhalten. Diese bildet ein wei sses, in heissem Wasser klar lösliches kristal lines Pulver.
Process for the production of a condensation product. The present patent is a process for the preparation of a condensation product of the probable formula
EMI0001.0004
characterized in that the Nm-trifluoromethyl-phenyl-N'-2- (2 '-) produced for example from m-trifluoromethyl-phenyl-isoeya.nat and (2-sulfo-4-chlorophenoxy) sulfo - 4 '- ehlorphenoxy)
-pheny l - chlorinated urea and converted the chlorination product into the sodium salt with a sodium compound.
As chlorinating agents, for example, chlorine gas (with or without a catalyst), chlorinated lime, lower chlorous acid, etc. come into question.
By chlorination, e.g. B. with chlorine in hises5ig, two atoms of chlorine are introduced into the molecule, which probably creates the compound of formula I. This forms a white crystalline powder which is clearly soluble in hot water and which can be used as a moth repellent.
Example: 100 'files of the N-m-trifluoromethyl-plienyl-N'-2- (2'-sttlfo-4' - chlorophenoxy) - plienyl - urea are dissolved in 600 parts of glacial acetic acid and saturated with chlorine gas at about 10 hours. Most of the glacial acetic acid is distilled off and the residue is made slightly alkaline with about 25% strength sodium hydroxide solution, the compound precipitating as an oily product. The supernatant solution is decanted off and the oil is dissolved in 10,000 parts of water at 95 and filtered with a little charcoal.
The compound is obtained in satisfactory purity by adding saturated saline solution and leaving it to stand overnight. This forms a white crystalline powder that is clearly soluble in hot water.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH299708T | 1950-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH299708A true CH299708A (en) | 1954-06-30 |
Family
ID=4490403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH299708D CH299708A (en) | 1950-04-29 | 1950-04-29 | Process for the production of a condensation product. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH299708A (en) |
-
1950
- 1950-04-29 CH CH299708D patent/CH299708A/en unknown
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