CH301251A - Process for the preparation of a new quinoxaline. - Google Patents
Process for the preparation of a new quinoxaline.Info
- Publication number
- CH301251A CH301251A CH301251DA CH301251A CH 301251 A CH301251 A CH 301251A CH 301251D A CH301251D A CH 301251DA CH 301251 A CH301251 A CH 301251A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- formula
- sep
- quinoxaline
- compound
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- XSCHRSMBECNVNS-UHFFFAOYSA-N quinoxaline Chemical compound N1=CC=NC2=CC=CC=C21 XSCHRSMBECNVNS-UHFFFAOYSA-N 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 3
- 230000002155 anti-virotic effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000009732 tufting Methods 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- VLPADTBFADIFKG-UHFFFAOYSA-N phanquone Chemical compound C1=CN=C2C(=O)C(=O)C3=NC=CC=C3C2=C1 VLPADTBFADIFKG-UHFFFAOYSA-N 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N alpha-methyl toluene Natural products CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 241000712461 unidentified influenza virus Species 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
- C07D471/14—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
Verfahren zur Herstellung eines neuen Chinoxalins. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines neuen ('liinoxalins, welches cladureh gekennzeichnet ist, dass man eine Verbindung, der Formel
EMI0001.0005
worin X und Y bei der Reaktion sich abspal tende Reste bedeuten, mit einer die Atom gruppierung =N-CHz-CH#-,-N= aufwei senden Verbindung umsetzt.
Das so erhaltene 5,6,7,8-Dipyrido-(5',6',2", ")-chinoxalin der Formel
EMI0001.0009
schmilzt bei 270 . Es besitzt Anti-Virus-Wir- kung und soll als Heilmittel Verwendung fin den. So zeigt es sich besonders wirksam gegen über dem Influenza-Virus im Hühnerembryo.
Als Ausgangsstoffe verwendet man vor teilhaft einerseits 4,7-Phenanthrolin-5,6-chi- tioti und anderseits Äthylendiamin-(1,2) oder Äthy lenharnstoff. Das Äthylendiamin kann auch in Form seiner Salze verwendet wer den.
Die Reaktion wird zweckmässig in An wesenheit eines Verdünnungsmittels Jurchge- führt. Das als Ausgangsstoff verwendete 4,7- Phenanthrolin-5,6-chinon kann nach dem Ver fahren des schweizerischen Patentes Nr. 293298 hergestellt werden.
<I>Beispiel:</I> 20 Gewichtsteile 4,7-Phenanthrolin-5,6-chi- non werden in 1000 Volumteilen Methanol ge löst und mit 6 Gewichtsteilen Äthylendiamin versetzt. Die Reaktion tritt sofort ein, sehr wahrscheinlich zunächst unter Bildung von 5,6,7,8-Dipyrido- (51,6',2",311) -dihydro-chinoxa- lin der Formel
EMI0001.0035
Man dampft dann ein.
Aus dem Rückstand lassen sich durch Umkristallisation aus Me thanol die nachstehenden zwei Produkte iso-
EMI0002.0001
lieren. <SEP> Das <SEP> eine <SEP> ist. <SEP> das <SEP> 5,6,7,8-Dipi-rido-(5',6',
<tb> 2",3")-chiiioxalin <SEP> der <SEP> Formel
EMI0002.0002
es wird am besten aus Methanol weiter um kristallisiert und zeigt dann einen F. von 270 .
Das andere Produkt stellt das 5,6,7,8- Dipyriclo - (5', 6',2",3") -1, 2, 3,4 - teti@ahvdro-- chi- noxalin der Formel
EMI0002.0010
,dar; es ist in Essigester und Benzol gut lös- lieh und schmilzt bei 187 .
Process for the preparation of a new quinoxaline. The subject of the present patent is a process for the preparation of a new ('liinoxalins, which cladureh is characterized by a compound of the formula
EMI0001.0005
where X and Y mean residues which split off during the reaction, with an atom grouping = N-CHz-CH # -, - N = aufwei send compound.
The 5,6,7,8-dipyrido (5 ', 6', 2 ",") -quinoxaline of the formula obtained in this way
EMI0001.0009
melts at 270. It has anti-virus effects and is said to be used as a remedy. It is particularly effective against the influenza virus in the chicken embryo.
The starting materials used are on the one hand 4,7-phenanthroline-5,6-chi-tioti and on the other hand ethylenediamine (1,2) or ethylene urea. Ethylenediamine can also be used in the form of its salts.
The reaction is expediently carried out in the presence of a diluent. The 4,7-phenanthroline-5,6-quinone used as the starting material can be prepared according to the method of Swiss patent no. 293298.
<I> Example: </I> 20 parts by weight of 4,7-phenanthroline-5,6-quinone are dissolved in 1000 parts by volume of methanol and 6 parts by weight of ethylenediamine are added. The reaction occurs immediately, very probably initially with the formation of 5,6,7,8-dipyrido- (51,6 ', 2 ", 311) -dihydroquinoxaline of the formula
EMI0001.0035
You then evaporate.
The following two products can be isolated from the residue by recrystallization from methanol
EMI0002.0001
lean. <SEP> The <SEP> is a <SEP>. <SEP> the <SEP> 5,6,7,8-Dipi-rido- (5 ', 6',
<tb> 2 ", 3") - chiiioxalin <SEP> of the <SEP> formula
EMI0002.0002
it is best recrystallized from methanol and then shows an F. of 270.
The other product is the 5,6,7,8-Dipyriclo- (5 ', 6', 2 ", 3") -1, 2, 3,4 - teti @ ahvdro-- quinoxaline of the formula
EMI0002.0010
, dar; it is readily soluble in ethyl acetate and benzene and melts at 187.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH301251T | 1950-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH301251A true CH301251A (en) | 1954-08-31 |
Family
ID=4490973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH301251D CH301251A (en) | 1950-05-05 | 1950-05-05 | Process for the preparation of a new quinoxaline. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH301251A (en) |
-
1950
- 1950-05-05 CH CH301251D patent/CH301251A/en unknown
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