CH210968A - Process for the preparation of a urea derivative. - Google Patents
Process for the preparation of a urea derivative.Info
- Publication number
- CH210968A CH210968A CH210968DA CH210968A CH 210968 A CH210968 A CH 210968A CH 210968D A CH210968D A CH 210968DA CH 210968 A CH210968 A CH 210968A
- Authority
- CH
- Switzerland
- Prior art keywords
- urea derivative
- preparation
- water
- phosgene
- dichloro
- Prior art date
Links
- 150000003672 ureas Chemical class 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 3
- YGYAWVDWMABLBF-UHFFFAOYSA-N phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- 239000004552 water soluble powder Substances 0.000 claims description 3
- 230000002940 repellent Effects 0.000 claims description 2
- 239000005871 repellent Substances 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical group NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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-Amino- 4,4'-dichlor-1,1'-diphenyläther-2'-sulfonsäure mit Phosgen umsetzt. Das neue Harnstoff derivat bildet als Natriumsalz ein weisses, gut wasserlösliches Pulver, das sich zur Ver wendung als Mottenschutzmittel eignet.
Beispiel: 17,8 Teile 2-Amino-4,4'-dichlor-1,1'-di- phenyläther-2'-sulfonsäure werden in 200 Tei len Wasser mit der nötigen Menge 10 o/oiger Sodalösung in Lösung gebracht. Dazu gibt man 30 Teile kristallisiertes Natriumacetat hinzu und leitet bei 40-50' C Phosgen ein, bis eine Probe kein freies Amin mehr anzeigt. Das abgeschiedene Produkt wird mit Soda genau neutralisiert und das Natriumsalz des neuen Harnstoffderivates durch Zusatz von gesättigter Kochsalzlösung abgeschieden.
Es wird nach dem Abtrennen, Trocknen und Mahlen als weisses, schön kristallines, gut wasserlösliches Pulver erhalten. Die Aus beute 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-amino-4,4'-dichloro-1,1'-diphenyl ether-2'-sulfonic acid is reacted with phosgene. As a sodium salt, the new urea derivative forms a white, water-soluble powder that is suitable for use as a moth repellent.
Example: 17.8 parts of 2-amino-4,4'-dichloro-1,1'-diphenyl ether-2'-sulfonic acid are dissolved in 200 parts of water with the necessary amount of 10% soda solution. To this end, 30 parts of crystallized sodium acetate are added and phosgene is passed in at 40-50 ° C. until a sample no longer shows any free amine. The deposited product is precisely neutralized with soda and the sodium salt of the new urea derivative is deposited by adding saturated saline solution.
After separating, drying and grinding it is obtained as a white, nicely crystalline, water-soluble powder. The yield is quantitative.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH536047X | 1938-06-16 | ||
| CH210968T | 1938-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH210968A true CH210968A (en) | 1940-08-15 |
Family
ID=25724957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH210968D CH210968A (en) | 1938-06-16 | 1938-06-16 | Process for the preparation of a urea derivative. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH210968A (en) |
-
1938
- 1938-06-16 CH CH210968D patent/CH210968A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH210968A (en) | Process for the preparation of a urea derivative. | |
| CH210971A (en) | Process for the preparation of a urea derivative. | |
| CH210969A (en) | Process for the preparation of a urea derivative. | |
| CH210964A (en) | Process for the preparation of a urea derivative. | |
| CH210966A (en) | Process for the preparation of a urea derivative. | |
| CH210972A (en) | Process for the preparation of a urea derivative. | |
| CH210970A (en) | Process for the preparation of a urea derivative. | |
| CH210973A (en) | Process for the preparation of a urea derivative. | |
| CH210967A (en) | Process for the preparation of a urea derivative. | |
| CH215328A (en) | Process for the production of a urea derivative. | |
| CH210965A (en) | Process for the preparation of a urea derivative. | |
| CH210963A (en) | Process for the preparation of a urea derivative. | |
| CH215300A (en) | Process for the production of a urea derivative. | |
| CH215322A (en) | Process for the production of a urea derivative. | |
| CH215302A (en) | Process for the production of a urea derivative. | |
| CH215307A (en) | Process for the production of a urea derivative. | |
| CH215327A (en) | Process for the production of a urea derivative. | |
| CH215309A (en) | Process for the production of a urea derivative. | |
| CH215293A (en) | Process for the production of a urea derivative. | |
| CH215318A (en) | Process for the production of a urea derivative. | |
| CH215316A (en) | Process for the production of a urea derivative. | |
| CH215301A (en) | Process for the production of a urea derivative. | |
| CH215308A (en) | Process for the production of a urea derivative. | |
| CH215306A (en) | Process for the production of a urea derivative. | |
| CH215294A (en) | Process for the production of a urea derivative. |