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.Info
- 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
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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)
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) |
-
1946
- 1946-08-16 CH CH261830D patent/CH261830A/en unknown
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