CH192020A - Process for the preparation of 5-bromo-m-phenanthroline. - Google Patents
Process for the preparation of 5-bromo-m-phenanthroline.Info
- Publication number
- CH192020A CH192020A CH192020DA CH192020A CH 192020 A CH192020 A CH 192020A CH 192020D A CH192020D A CH 192020DA CH 192020 A CH192020 A CH 192020A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- phenanthroline
- bromo
- preparation
- arsenic
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052785 arsenic Inorganic materials 0.000 claims description 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UNFYSPONYGTMNH-UHFFFAOYSA-N 8-bromoquinolin-5-amine Chemical compound C1=CC=C2C(N)=CC=C(Br)C2=N1 UNFYSPONYGTMNH-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
Verfahren zur Herstellung von 6-Brom-m-phenanthrolin. Das Hauptpatent betrifft ein Verfahren aur Herstellung von 5-Brom-m-phenanthrolin,
EMI0001.0005
welches dadurch gekennzeichnet ist, dass man einen Körper der Formel
EMI0001.0010
worin R während der Reaktion sich abspal tende Reste bedeuten, mit Arsenpentogyd, Glyzerin und Schwefelsäure erhitzt.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung von 5-Brom - m - phenanthrolin, welches dadurch gekenn zeichnet ist,,dass man 5-Amino-8-brom-chino- lin mit Glyzerin, Arsenpentogyd und ,Schwe- felsäure erhitzt.
<I>Beispiel:</I> 1:00<B>g</B> 5 - Amino-$ -brom-chinolin, 60 g A.rsenpentogyd, 90 üm.g Glyzerin, 50 cm' Schwefelsäure (sp. Gew.1,84)
und gegebenen- falls eine kleine Menge Wasser werden 6 Stunden unter Rückflusskühlung auf einem Ösbaid von 140 bis <B>160'</B> C ,gekocht. Das Reaktionsgemisch wird auf Fis und Wasser ausgegossen,
filtriert und das Filtrat mit Ammoniak alkalisch gemabht. Der hierbei gefällte, sirupartige Stoff wird von der wäjs- serwgen Lösung getrennt und in Alkohol auf genommen.
Nach Trocknung der alkoholischen Lösung mit behufs Vereinfachung der darauffolgenden Destillation,
wird der Alkohol abdestilliert. Der Rückstand wird dann @duroh Destillation unter stark vermin- dertem Druck fraktioniert. Unter Hoch vakuum und bei einer Balltemperatur von
EMI0002.0001
liugefälhr <SEP> 150 <SEP> bis <SEP> 170 <SEP> <SEP> C <SEP> destilliert <SEP> das <SEP> 5 Brom-m-phenanthrolin <SEP> .glatt <SEP> über.
<SEP> Du.roh <SEP> Um kristallisieren, <SEP> beispielsweise <SEP> aus <SEP> Alkohol, <SEP> er hält <SEP> man <SEP> weisses <SEP> 5-Brom-m-phenanihrolin <SEP> in
<tb> reinem <SEP> Zustande. <SEP> Sein <SEP> Schmelzpunkt <SEP> liegt
<tb> bei <SEP> lio <SEP> <B>0</B> <SEP> -C.
Process for the preparation of 6-bromo-m-phenanthroline. The main patent relates to a process for the production of 5-bromo-m-phenanthroline,
EMI0001.0005
which is characterized by having a body of the formula
EMI0001.0010
where R means splitting off radicals during the reaction, heated with arsenic pentogide, glycerol and sulfuric acid.
The subject of the present patent is a process for the production of 5-bromine-m-phenanthroline, which is characterized by the fact that 5-amino-8-bromoquinoline is heated with glycerine, arsenic pentogide and sulfuric acid.
<I> Example: </I> 1:00 <B> g </B> 5 - amino- $ -bromo-quinoline, 60 g arsenic pentogyd, 90 µg glycerine, 50 cm 'sulfuric acid (sp .1.84)
and if necessary a small amount of water are refluxed on an Ösbaid at 140 to 160 ° C for 6 hours. The reaction mixture is poured onto F sharp and water,
filtered and the filtrate made alkaline with ammonia. The syrupy substance precipitated in the process is separated from the aqueous solution and taken up in alcohol.
After drying the alcoholic solution to simplify the subsequent distillation,
the alcohol is distilled off. The residue is then fractionated @duroh distillation under greatly reduced pressure. Under high vacuum and at a ball temperature of
EMI0002.0001
liugefälhr <SEP> 150 <SEP> to <SEP> 170 <SEP> <SEP> C <SEP> <SEP> distills the <SEP> 5 bromine-m-phenanthroline <SEP> .glatt <SEP> over.
<SEP> Du.roh <SEP> To crystallize, <SEP> for example <SEP> from <SEP> alcohol, <SEP> he gets <SEP> one <SEP> white <SEP> 5-bromo-m-phenanihroline <SEP > in
<tb> pure <SEP> condition. <SEP> His <SEP> melting point <SEP> is
<tb> at <SEP> lio <SEP> <B> 0 </B> <SEP> -C.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL192020X | 1934-12-22 | ||
| CH186268T | 1935-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH192020A true CH192020A (en) | 1937-07-15 |
Family
ID=25721346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH192020D CH192020A (en) | 1934-12-22 | 1935-09-02 | Process for the preparation of 5-bromo-m-phenanthroline. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH192020A (en) |
-
1935
- 1935-09-02 CH CH192020D patent/CH192020A/en unknown
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