CH314915A - Process for the preparation of 2-thiocyano-4: 6-diamino-s-triazine - Google Patents
Process for the preparation of 2-thiocyano-4: 6-diamino-s-triazineInfo
- Publication number
- CH314915A CH314915A CH314915DA CH314915A CH 314915 A CH314915 A CH 314915A CH 314915D A CH314915D A CH 314915DA CH 314915 A CH314915 A CH 314915A
- Authority
- CH
- Switzerland
- Prior art keywords
- triazine
- diamino
- preparation
- thiocyano
- solution
- Prior art date
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
- C07D251/48—Two nitrogen atoms
- C07D251/52—Two nitrogen atoms with an oxygen or sulfur atom attached to the third ring carbon atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
<B>Verfahren zur Herstellung von</B> 2-Thioeyano-4:6-diamino-s-triazin Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von 2-Thioeya.no- 4 : 6-diamino-s-tria.zin der Formel
EMI0001.0005
Das Verfahren ist dadurch gekennzeichnet, dass man Thiocyansäure mit 2-Chlor-4: 6- diamino-s-triazin in Wasser reagieren lässt, die entstehende Lösung neutralisiert und das ausgefällte Triazinderivat isoliert.
Das nachfolgende Beispiel soll. die Erfin dung näher erläutern: Beispiel 795 g Kaliumthiocyanat (2 Mol) werden in :500 ein- Wasser gelöst und 170 ein- Salz säure etwa 2 Mol HCl enthaltend, zwecks Bildung einer wässerigen Lösung von Thio- eyansäure zugefügt. Diese Lösung wird, um die Zersetzung möglichst zu vermeiden, in der Kälte (0-10 ) hergestellt und verwendet.
Zu dieser Lösung werden dann 25 g 2-Chlor-4:6- diamino-s-triazin (0,17 Mol) zugefügt, welches sieh rasch unter Bildung einer tiefroten Lö- sun@, auflöst. Die Lösung wird dann zwecks Entfernung geringer Mengen suspendierter Stoffe filtriert, worauf das Filtrat in der Kälte mit 20 0/aiger Natronlauge bis zu einem pA von etwa 5 neutralisiert wird.
Die hierbei entstehende gelbe Fällung (25 g = 90,51/0 der theoretischen Ausbeute) wird mit Aceton extrahiert, worin sie leicht löslich ist. Durch Verdampfen des Acetons wird das 2-Thio- eyano-4:6-diamino-s-triazin, frei von Chlor iden, erhalten.
Die neue Verbindung ist in Aceton leicht löslich und kann als Insektizid, als Anti- oxyda.ns und als Zwischenprodukt für die Herstellung von Triazin-Derivaten, synthe tischen Harzen, und Farbstoffen verwendet werden.
<B> Process for the preparation of </B> 2-Thioeyano-4: 6-diamino-s-triazine The present invention relates to a process for the preparation of 2-Thioeya.no-4: 6-diamino-s-triazine the formula
EMI0001.0005
The process is characterized in that thiocyanic acid is allowed to react with 2-chloro-4: 6-diamino-s-triazine in water, the resulting solution is neutralized and the precipitated triazine derivative is isolated.
The following example is supposed to. explain the invention in more detail: Example 795 g of potassium thiocyanate (2 mol) are dissolved in: 500 one-part water and 170 one-hydrochloric acid containing about 2 moles of HCl are added to form an aqueous solution of thioyanic acid. In order to avoid decomposition as much as possible, this solution is prepared and used in the cold (0-10).
25 g of 2-chloro-4: 6-diamino-s-triazine (0.17 mol) are then added to this solution, which dissolves rapidly with the formation of a deep red solution. The solution is then filtered to remove small amounts of suspended substances, whereupon the filtrate is neutralized in the cold with 20% sodium hydroxide solution to a pA of about 5.
The resulting yellow precipitate (25 g = 90.51 / 0 of the theoretical yield) is extracted with acetone, in which it is easily soluble. By evaporating the acetone, the 2-thioeyano-4: 6-diamino-s-triazine, free of chlorine ids, is obtained.
The new compound is easily soluble in acetone and can be used as an insecticide, as an antioxidant and as an intermediate for the manufacture of triazine derivatives, synthetic resins and dyes.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US314915XA | 1952-06-18 | 1952-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH314915A true CH314915A (en) | 1956-07-15 |
Family
ID=21859751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH314915D CH314915A (en) | 1952-06-18 | 1953-06-15 | Process for the preparation of 2-thiocyano-4: 6-diamino-s-triazine |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH314915A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111641B (en) * | 1958-07-24 | 1961-07-27 | Degussa | Process for the preparation of rhodantriazines |
-
1953
- 1953-06-15 CH CH314915D patent/CH314915A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111641B (en) * | 1958-07-24 | 1961-07-27 | Degussa | Process for the preparation of rhodantriazines |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH314915A (en) | Process for the preparation of 2-thiocyano-4: 6-diamino-s-triazine | |
DE2248820C3 (en) | Dipotassium 4,4'-bis (4-phenyl-2-vtriazolyl) -stilbene-2,2'-disulfonate, its production and use as an optical brightener | |
DE921265C (en) | Process for the preparation of aryl-substituted pyrazoline compounds | |
AT254200B (en) | Process for the preparation of disubstituted piperazine compounds | |
DE442039C (en) | Process for the preparation of alkali-alkaline earth double salts of aromatic halosulfonamides | |
DE935128C (en) | Process for the preparation of new therapeutically active esters of the penicillin series and their metal complex compounds | |
DE589146C (en) | Process for the preparation of C, C-disubstituted barbituric acids | |
DE686701C (en) | Process for the preparation of aryl-substituted ª † -amino-ª ‰ -oxybutyric acids | |
AT145829B (en) | Process for the preparation of quinaldine derivatives. | |
AT233568B (en) | Process for the preparation of sulfonamides | |
AT113674B (en) | Process for the preparation of new organic arsenic compounds. | |
DE490421C (en) | Process for the preparation of dioxyarsenobenzene bisthiosemicarbazones | |
DE699772C (en) | Process for the preparation of ª ‰ -oxyaethylcarbaminobenzene-p-arsic acid | |
AT216004B (en) | Process for the preparation of the new N- (4-sulfonamidophenyl) -butanesultam | |
CH401025A (en) | Process for the preparation of a phenylethylbenzoic acid | |
CH507961A (en) | Antidiabetic sulphonamides | |
CH205417A (en) | Process for the preparation of 1- (4'-nitro-2'-aldehydophenoxy) -6-acetylaminonaphthalene-3-sulfonic acid. | |
CH305946A (en) | Process for the preparation of a fluorescent monotriazole compound. | |
CH296521A (en) | Process for the preparation of an aliphatic, complex-forming diamino-N, N'-tetraacetic acid. | |
CH303086A (en) | Process for the production of a coumarin derivative. | |
CH304253A (en) | Process for the preparation of an optical brightening agent. | |
CH151193A (en) | Process for the preparation of the crotonic acid ester of 4-glycolylamino-2-methylbenzene-1-arsic acid. | |
CH191008A (en) | Process for the preparation of a dioxystilbene dicarboxylic acid. | |
CH189796A (en) | Process for the preparation of a condensation product from phloroglucinol and para-aminoquinoline. | |
DE1040786B (en) | Process for the production of high molecular weight tri- (arylamino) -triazine condensation products which are excellent for their antiviral activity |