DE1103933B - Process for the preparation of diamino-s-triazine - Google Patents

Process for the preparation of diamino-s-triazine

Info

Publication number
DE1103933B
DE1103933B DEB56478A DEB0056478A DE1103933B DE 1103933 B DE1103933 B DE 1103933B DE B56478 A DEB56478 A DE B56478A DE B0056478 A DEB0056478 A DE B0056478A DE 1103933 B DE1103933 B DE 1103933B
Authority
DE
Germany
Prior art keywords
triazine
diamino
preparation
diaminos
dicyandiamide
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DEB56478A
Other languages
German (de)
Inventor
Dr Phil Hellmut Bredereck
Dipl-Chem Ottokar Smerz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PHIL HELLMUT BREDERECK DR
Original Assignee
PHIL HELLMUT BREDERECK DR
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 PHIL HELLMUT BREDERECK DR filed Critical PHIL HELLMUT BREDERECK DR
Priority to DEB56478A priority Critical patent/DE1103933B/en
Publication of DE1103933B publication Critical patent/DE1103933B/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C07D251/40—Nitrogen atoms
    • C07D251/54—Three nitrogen atoms
    • C07D251/70—Other substituted melamines
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
    • C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
    • C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
    • C07D251/40—Nitrogen atoms
    • C07D251/54—Three nitrogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Description

Verfahren zur Herstellung von Diamino-s-triazin Es ist schon lange bekannt, Diamino-s-triazin durch Erhitzen von Formylguanidin herzustellen. Die dabei erhaltene Ausbeute ist jedoch verhältnismäßig gering.Process for making diamino-s-triazine It has been around for a long time known to produce diamino-s-triazine by heating formylguanidine. The one with it however, the yield obtained is relatively low.

Die am häufigsten angewandte Methode zur Herstellung des Diamino-s-triazins besteht in der Umsetzung eines Derivates der Ameisensäure (freie Säure, Amid oder Ester) mit Biguanid bzw. einem substituierten Biguanid. Es ist ferner möglich, die Verbindung aus 2,4-Diamino-6-chlor-s-triazin durch Reduktion herzustellen.The most commonly used method for the production of diamino-s-triazine consists in the implementation of a derivative of formic acid (free acid, amide or Ester) with biguanide or a substituted biguanide. It is also possible to use the Preparation of compound from 2,4-diamino-6-chloro-s-triazine by reduction.

Es wurde nunmehr gefunden, daß man Diaminos-triazin durch Erhitzen von Dicyandiamid mit Formamid einfach und in guter Ausbeute gewinnen kann. Die Reaktion kann auch in Gegenwart von wenig Alkali durchgeführt werden. Hierbei wendet man Temperaturen oberhalb 100° C an, vorzugsweise zwischen 140 und 180° C.It has now been found that diaminos-triazine can be obtained by heating of dicyandiamide with formamide can be obtained easily and in good yield. The reaction can also be carried out in the presence of a little alkali. Here you turn Temperatures above 100 ° C, preferably between 140 and 180 ° C.

Für den Ablauf der Reaktion wählen wir die nachstehende Formulierung Beispiel 42 g Dicyandiamid werden mit 135 g Formamid auf 165 bis 170° C erhitzt. Unter Gasentwicklung tritt Reaktion ein, die nach 5 Stunden beendet ist. Nach Abkühlung der Reaktionsmischung scheidet sich daraus ein brauner Niederschlag ab, der aus Wasser - eventuell unter Zusatz von Aktivkohle - umkristallisiert wird. Ausbeute: 40 bis 45 g Diaminos-triazin.We choose the following formulation for the course of the reaction Example 42 g of dicyandiamide are heated to 165 to 170 ° C. with 135 g of formamide. A reaction occurs with evolution of gas and ends after 5 hours. After the reaction mixture has cooled, a brown precipitate separates from it and is recrystallized from water - possibly with the addition of activated charcoal. Yield: 40 to 45 g of diaminos-triazine.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 2,4-Diaminos-triazin, dadurch gekennzeichnet, daß man Dicyandiamid mit Formamid bei Temperaturen oberhalb 100° C umsetzt.PATENT CLAIM: Process for the production of 2,4-diaminos-triazine, characterized in that dicyandiamide with formamide at temperatures above 100 ° C converts.
DEB56478A 1960-02-01 1960-02-01 Process for the preparation of diamino-s-triazine Pending DE1103933B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB56478A DE1103933B (en) 1960-02-01 1960-02-01 Process for the preparation of diamino-s-triazine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB56478A DE1103933B (en) 1960-02-01 1960-02-01 Process for the preparation of diamino-s-triazine

Publications (1)

Publication Number Publication Date
DE1103933B true DE1103933B (en) 1961-04-06

Family

ID=6971343

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB56478A Pending DE1103933B (en) 1960-02-01 1960-02-01 Process for the preparation of diamino-s-triazine

Country Status (1)

Country Link
DE (1) DE1103933B (en)

Similar Documents

Publication Publication Date Title
DE1103933B (en) Process for the preparation of diamino-s-triazine
DE841751C (en) Process for the production of guanine
DE665258C (en) Process for the production of dry, spreadable diammonophosphate fertilizers
DE967522C (en) Process for the production of a storage-stable, nitrogen-free phosphate fertilizer or feed supplement
DE1283823B (en) Process for the production of Adipinsaeuredinitril
DE607663C (en) Process for the production of cyanuric acid
DE941289C (en) Process for the production of purine
DE907891C (en) Process for the preparation of ª ‡ -oxy-ª ‰, ª ‰ -dimethyl-ª † -oxy-butyrylamide
DE1950075C2 (en) Process for the preparation of 4-chloropyrazolo- square bracket to 3,4-square bracket to pyrimidine
DE2130110A1 (en) Process for the production of cyanoacetic acid
DE1135887B (en) Process for the preparation of a mixture of 2, 3- and 2, 6-dichlorobenzonitrile
DE945925C (en) Process for the preparation of isonicotinic acid hydrazide derivatives
DE901053C (en) Process for the production of guanidine thiocyanate
AT203495B (en) Process for the preparation of new tertiary amines
CH500200A (en) Fluorophenyl cpds antibacterial antiprotozoal
CH326067A (en) Process for the preparation of methylene-bis-B-amino-a-chloropropionic acid nitrile
DE934362C (en) Process for the production of poorly soluble compounds of insulin
CH404626A (en) Process for the production of nitrocyclohexane
AT233573B (en) Process for the preparation of 4-azaphenthiazine derivatives
AT242152B (en) Process for the production of melamine from urea and / or its thermal decomposition products
DE906334C (en) Process for the preparation of quinolinium compounds
AT218515B (en) Process for the preparation of the 2, 6- and the new 2, 3-dichlorobenzonitrile
DE734349C (en) Process for the production of ketene
DE744688C (en) Manufacture of disodium arsenate
DE936389C (en) Process for the production of hydrocyanic acid