[go: up one dir, main page]

CH210970A - Process for the preparation of a urea derivative. - Google Patents

Process for the preparation of a urea derivative.

Info

Publication number
CH210970A
CH210970A CH210970DA CH210970A CH 210970 A CH210970 A CH 210970A CH 210970D A CH210970D A CH 210970DA CH 210970 A CH210970 A CH 210970A
Authority
CH
Switzerland
Prior art keywords
urea derivative
preparation
water
phosgene
sulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH210970A publication Critical patent/CH210970A/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

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     3,4-Dichlor-          anilin-6-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>  20 Teile     3,4-Dichloranilin-6-sulfonsäure     werden in 260 Teilen Wasser mit der nöti  gen Menge 10     %iger        Sodalösung    in Lösung  gebracht. Hierauf gibt man 30 Teile kristalli  siertes     Natriumaeetat    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 3,4-dichloroaniline-6-sulfonic acid is reacted with phosgene. The new urea derivative forms a pale, water-soluble powder as a sodium salt, which is suitable for use as a moth repellent.



  <I> Example: </I> 20 parts of 3,4-dichloroaniline-6-sulfonic acid are dissolved in 260 parts of water with the necessary amount of 10% soda solution. 30 parts of crystallized sodium acetate are then added, and phosgene is passed in at 40-50 ° until a sample no longer shows any free amine. The sodium salt of the new urea derivative is then deposited by adding common salt. It is obtained as a pale, readily water-soluble powder after it has been separated off, dried and ground. The yield is quantitative.

Claims (1)

PATENTANSPRUCI3: Verfahren zur Herstellung eines Harn stoffderivates der Formel EMI0001.0016 dadurch gekennzeichnet, dass man 3,4-Dicblor- anilin-6-sulfonsäure mit Phosgen umsetzt. Das neue Harnstoffderivat bildet als Natrium salz ein helles, gut wasserlösliches Pulver, das sich zur Verwendung als Mottenschutz mittel eignet. PATENT CLAIM3: Process for the production of a urea derivative of the formula EMI0001.0016 characterized in that 3,4-dicbloro aniline-6-sulfonic acid is reacted with phosgene. The new urea derivative, as sodium salt, forms a light-colored, water-soluble powder that is suitable for use as a moth repellent.
CH210970D 1938-06-16 1938-06-16 Process for the preparation of a urea derivative. CH210970A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH210970T 1938-06-16
CH536047X 1938-06-16

Publications (1)

Publication Number Publication Date
CH210970A true CH210970A (en) 1940-08-15

Family

ID=25724959

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210970D CH210970A (en) 1938-06-16 1938-06-16 Process for the preparation of a urea derivative.

Country Status (1)

Country Link
CH (1) CH210970A (en)

Similar Documents

Publication Publication Date Title
CH210970A (en) Process for the preparation of a urea derivative.
CH210972A (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.
CH210965A (en) Process for the preparation of a urea derivative.
CH210969A (en) Process for the preparation of a urea derivative.
CH210966A (en) Process for the preparation of a urea derivative.
CH210964A (en) Process for the preparation of a urea derivative.
CH210971A (en) Process for the preparation of a urea derivative.
CH210963A (en) Process for the preparation of a urea derivative.
CH210968A (en) Process for the preparation of a urea derivative.
DE488891C (en) Process for the preparation of N-substituted arsenobenzimidazolones
AT131127B (en) Process for the preparation of salts of iodomethanesulfonic acid or its homologues.
DE629653C (en) Process for the preparation of tetrahydronaphthylamine sulfonic acids
AT216671B (en) Process for the preparation of compounds of various penicillins with sulfonamides
CH120257A (en) Process for the preparation of a new oxynaphthalene carboxylic acid.
CH215300A (en) Process for the production of a urea derivative.
CH212788A (en) Process for the preparation of an aminoarylsulfonic acid derivative.
CH202725A (en) Process for the preparation of a water-soluble derivative of the heterocyclic series.
CH134865A (en) Process for the preparation of a therapeutically valuable dye preparation.
CH184300A (en) Process for the preparation of a condensation product from the a-naphthylamide of 2,3-oxynaphthoic acid and formaldehyde.
CH174886A (en) Process for the preparation of an oxycarboxylic acid.
CH192762A (en) Process for the preparation of a water-soluble dye.
CH242493A (en) Process for the preparation of a new benzenesulfonamide derivative.
CH308475A (en) Process for the preparation of a triphenylmethane dye.