CH261830A - Process for the preparation of a substituted 2,4-diamino-1,3,5-triazine. - Google Patents

Process for the preparation of a substituted 2,4-diamino-1,3,5-triazine.

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Publication number
CH261830A
CH261830A CH261830DA CH261830A CH 261830 A CH261830 A CH 261830A CH 261830D A CH261830D A CH 261830DA CH 261830 A CH261830 A CH 261830A
Authority
CH
Switzerland
Prior art keywords
triazine
diamino
substituted
biguanide
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH261830A publication Critical patent/CH261830A/en

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Description

  

  Verfahren zur     Herstellung    eines substituierten     2,4-Diamino-1,3,5-triazina.       Gegenstand vorliegenden Patentes bildet  ein Verfahren zur Herstellung eines substi  tuierten     2,4-Diamino-1,3,5-triazins.    Das Ver  fahren ist dadurch gekennzeichnet, dass man       1.-(p-Chlor-benzyl)-biguanid    mit einer zur       Triazinringbildung    geeigneten, den Rest       HC.=    abgebenden Verbindung, wie z.

   B. mit       Ameisensäureester,        Formamid,        Formamidin,     Chloroform,     Orthoameisensäureester,    zum       2-Amino-4-        (p-ehlor-benzy    1)     -ainino-1,3,5-triazin     umsetzt. Die erhaltene neue Base schmilzt bei  2000. Sie soll als Heilmittel oder Zwischen  produkt für die Herstellung von Heilmitteln  verwendet werden.  



  <I>Beispiel:</I>  129 Teile saures     1-(p-Chlor-benzyl)-bigua-          nidsulfat        (C"H"N,Cl        +        H.S04)    werden in  240 Teilen Äthylalkohol suspendiert und mit  einer aus 18,4 Teilen Natrium und 270 Teilen  Äthylalkohol hergestellten     Alkoholatlösung    und  31 Teilen     Äthylformiat    zur Reaktion gebracht.

    Das Reaktionsgemisch wird abgekühlt und       abgenutscht    und aus dem alkoholischen Fil  trat durch Eindampfen und     Umkristallisieren     des Rückstandes aus Methanol ein kleiner Teil  des gebildeten     2-Amino-4-(p-chlor-benzyl)-          1,3,5-triazins    isoliert. Die Hauptmenge wird    aus dem     Nutschgut    durch Herauslösen mit  heissem Wasser oder siedendem Methanol und  nochmaliges     Umkristallisieren    aus Methanol  gewonnen.  



  Zur gleichen Verbindung gelangt man  auch durch     Umsetzung    von     1-(p-Chlor-ben-          zyl)-biguanid    mit     Formamid.  



  Process for the preparation of a substituted 2,4-diamino-1,3,5-triazine. The subject of the present patent forms a process for the preparation of a substituted 2,4-diamino-1,3,5-triazine. The process is characterized in that 1 .- (p-chloro-benzyl) -biguanide with a suitable for triazine ring formation, the remainder HC.

   B. with formic acid ester, formamide, formamidine, chloroform, orthoformic acid ester, to 2-amino-4- (p-ehlor-benzy 1) -ainino-1,3,5-triazine. The obtained new base melts at 2000. It is intended to be used as a remedy or an intermediate in the manufacture of remedies.



  <I> Example: </I> 129 parts of acid 1- (p-chloro-benzyl) -biguanide sulfate (C "H" N, Cl + H.S04) are suspended in 240 parts of ethyl alcohol and mixed with one of 18, 4 parts of sodium and 270 parts of ethyl alcohol prepared alcoholate solution and 31 parts of ethyl formate reacted.

    The reaction mixture is cooled and filtered off with suction and a small portion of the 2-amino-4- (p-chlorobenzyl) -1,3,5-triazine formed was isolated from the alcoholic Fil by evaporation and recrystallization of the residue from methanol. The main amount is obtained from the suction filter by dissolving it out with hot water or boiling methanol and repeated recrystallization from methanol.



  The same compound is also obtained by reacting 1- (p-chloro-benzyl) -biguanide with formamide.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines substi tuierten 2,4-Diamino-1,3,5-triazins, dadurch gekennzeichnet, dass man 1-(p-Chlor-benzyl)- biguanid mit einer zur Triazinringbildung ge eigneten, den Rest HC= abgebenden Verbin dung zum 2-Amino-4-(p-chlor-benzyl)-amino- 1.,3,5-triazin umsetzt. Die erhaltene neue Base schmilzt bei 2001). UNTERANSPRü CHE 1. Claim: Process for the production of a substituted 2,4-diamino-1,3,5-triazine, characterized in that 1- (p-chloro-benzyl) - biguanide with a suitable for triazine ring formation, the remainder HC = donates Connection to the 2-amino-4- (p-chloro-benzyl) -amino-1., 3,5-triazine converts. The new base obtained melts at 2001). SUBCLAIMS 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man 1-(p-Chlor- benzyl)-biguanid mit einem Ameisensäure ester umsetzt. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man 1-(p-Chlor- benzyl)-biguanid mit Formamid umsetzt. Process according to patent claim, characterized in that 1- (p-chlorobenzyl) biguanide is reacted with a formic acid ester. 2. The method according to claim, characterized in that 1- (p-chlorobenzyl) biguanide is reacted with formamide.
CH261830D 1946-08-16 1946-08-16 Process for the preparation of a substituted 2,4-diamino-1,3,5-triazine. CH261830A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH254538T 1946-08-16
CH261830T 1946-08-16

Publications (1)

Publication Number Publication Date
CH261830A true CH261830A (en) 1949-05-31

Family

ID=25729841

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261830D CH261830A (en) 1946-08-16 1946-08-16 Process for the preparation of a substituted 2,4-diamino-1,3,5-triazine.

Country Status (1)

Country Link
CH (1) CH261830A (en)

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