DE468403C - Process for the preparation of organic arsenic compounds - Google Patents
Process for the preparation of organic arsenic compoundsInfo
- Publication number
- DE468403C DE468403C DED43152D DED0043152D DE468403C DE 468403 C DE468403 C DE 468403C DE D43152 D DED43152 D DE D43152D DE D0043152 D DED0043152 D DE D0043152D DE 468403 C DE468403 C DE 468403C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- organic arsenic
- acid
- arsenic compounds
- compounds
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 6
- 150000001495 arsenic compounds Chemical class 0.000 title claims description 4
- 229940093920 gynecological arsenic compound Drugs 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- GCPXMJHSNVMWNM-UHFFFAOYSA-N arsenous acid Chemical class O[As](O)O GCPXMJHSNVMWNM-UHFFFAOYSA-N 0.000 claims description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical group O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- AQLMHYSWFMLWBS-UHFFFAOYSA-N arsenite(1-) Chemical compound O[As](O)[O-] AQLMHYSWFMLWBS-UHFFFAOYSA-N 0.000 description 2
- PTLRDCMBXHILCL-UHFFFAOYSA-M sodium arsenite Chemical compound [Na+].[O-][As]=O PTLRDCMBXHILCL-UHFFFAOYSA-M 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- WYECURVXVYPVAT-UHFFFAOYSA-N 1-(4-bromophenyl)ethanone Chemical compound CC(=O)C1=CC=C(Br)C=C1 WYECURVXVYPVAT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229940000488 arsenic acid Drugs 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical group [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000973 chemotherapeutic effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- -1 ketones compounds Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/66—Arsenic compounds
- C07F9/70—Organo-arsenic compounds
- C07F9/74—Aromatic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung organischer Arsenverbindungen Gegenstand der vorliegenden Erfindung ist die Herstellung neuer organischer Arsenverbindungen durch Umsetzung von gemischt aliphatisch-aromatischen halogensubstituierten Ketonv erbindungen, bei welchen das Brom am aromatischen Rest sitzt, mit Arsenit.Process for the preparation of organic arsenic compounds Subject of the present invention is the preparation of new organic arsenic compounds by converting mixed aliphatic-aromatic halogen-substituted ketones compounds in which the bromine is attached to the aromatic residue with arsenite.
Die Reaktion verläuft hierbei entsprechend folgender Formel: Die Ausführung des Prozesses erfolgt in Lösungsmitteln, z. B. wäßrig-alkoholischer Lösung, in der Wärme oder durch Zusammenschmelzen bei Abwesenheit von Lösungsmitteln. Die nach .diesem Verfahren darstellbaren neuen Körper haben folgende allgetneine Formel R, - CO - R. # AsO.;H ,.The reaction proceeds according to the following formula: The process is carried out in solvents, e.g. B. aqueous-alcoholic solution, in the heat or by melting together in the absence of solvents. The new bodies that can be produced by this method have the following general formula R, - CO - R. # AsO.; H,.
In dieser Formel bedeuten R, aliphatische Uadikale. R, zyklische Radikale.In this formula, R 1 denotes aliphatic radicals. R, cyclic radicals.
Das aliphatische Radikal kann beliebig gebaut sein. es kann also auch beliebig substituiert sein, z. B. können die Wasserstoffatome am Kohlenstoff des aliphatischen Radikals beliebig durch zyklische, aliphatische, heterozyklische u. dgl. Verbindungen sowie durch chemotherapeutisch wirksame anorganische, organische oder anorganisch-organisch gemischte Gruppen, z. B. Metallradikale, wie Quecksilber, Jod us-,v., Metalloxydradikale, das Naphthalinsulforadikal usw., ersetzt sein.The aliphatic radical can have any structure. so it can too arbitrarily substituted, e.g. B. the hydrogen atoms on the carbon of the aliphatic radicals arbitrarily by cyclic, aliphatic, heterocyclic u. Like. Compounds and chemotherapeutically effective inorganic, organic or groups mixed inorganically and organically, e.g. B. metal radicals, such as mercury, Iodine, v., Metal oxide radicals, the naphthalene sulpho radical, etc., be replaced.
Die nach vorliegendem Verfahren hergestellten Verbindungen sind durch hervorragende chemotherapeutische Eigenschaften ausgezeichnet, die offenbar im wesentlichen auf das gleichzeitige Vorhandensein von Carbonylgruppen und des Arsenigsäurerestes zurückzuführen sind.The compounds made by the present process are through excellent chemotherapeutic properties excellent, apparently essentially the simultaneous presence of carbonyl groups and the arsenic acid residue are due.
Die Möglichkeit der Herstellung der neuen Verbindungen auf dem beschriebenen Wege lag nicht nahe, sondern man mußte annehmen, daß die Carbonylgruppen infolge ihrer äußerst leichten Reduzierbarkeit durch die starke Reduktionswirkung der in den organischen Rest einzuführenden Gruppen, z. B. der arsenigen Säure bzw.'der Arsenite, in Mitleidenschaft gezogen würden. Die auf der unerwarteten Beständigkeit der Carbonylgruppen beruhende Herstellungsmöglichkeit der neuen Verbindungen und der mit ihr erzielte technische Fortschritt erscheint also durchaus überraschend. Beispiele i. 1,8 Teile Natriumarsenit (Kahlbaum), in 7 Teilen Wasser heiß gelöst, .`werden versetzt mit i Teil p-Bromäcetophenon in 7 Teilen Alkohol. Diese Mischung wird im verschlossenen Gefäß 12 Stunden erhitzt auf etwa 16o bis i7o° C. Nach beendigter Operation wird der Alkohol abdestilliert und der Rückstand mit Salzsäure angesäuert, wobei die nicht in Reaktion getretene arsenige Säure sich abscheidet. Der Rückstand wird auf dem Wasserbad abgedampft und mit Soda aufgenommen. Nach Abfiltrieren von etwas Ungelöstem wird mit Salzsäure die p-Acetophenonarsinsäure ausgefällt.The possibility of making new connections on the described Path was not obvious, but one had to assume that the carbonyl groups as a result their extremely easy reducibility due to the strong reducing effect of the in the organic radical to be introduced groups, e.g. B. the arsenic acid or'der Arsenite, would be affected. The one on the unexpected persistence the carbonyl group-based production possibility of the new compounds and the technical progress achieved with it therefore appears to be quite surprising. Examples i. 1.8 parts of sodium arsenite (Kahlbaum), dissolved in 7 parts of hot water mixed with 1 part of p-bromoacetophenone in 7 parts of alcohol. This mixture is in the closed vessel heated to about 160 to 170 ° C. for 12 hours Operation, the alcohol is distilled off and the residue is acidified with hydrochloric acid, the arsenous acid which has not reacted is deposited. The residue is evaporated on a water bath and taken up with soda. After filtering off Something undissolved is precipitated with hydrochloric acid, the p-acetophenonarsinic acid.
Die p-Acetophenonarsinsäure läßt sich aus etwa 15 Teilen heißen Wassers umkristallisieren. Die Kristalle zeigen die Form von farblosen Täfelchen, die, im Vakuum getrocknet, bei r76° schmelzen.The p-acetophenonarsinic acid can be made up of about 15 parts of hot water recrystallize. The crystals show the shape of colorless tablets, which, im Vacuum dried, melt at r76 °.
2. i g 3-Amido-q.-brom-i-acetophenon werden mit etwa 1,5 g Natriumarsenit und o,5 g Kupferpulver in wäßrig-alkoholischer Lösung etwa 6 Stunden lang bei etwa i8o° im zugeschmolzenen Rohr erhitzt. Dabei findet Austausch des Bromatoms gegen den Arsenrest statt. Nach Eindampfen entfernt man die evtl. entstandenen Nebenprodukte durch Umlösen mit Natriumcarbonat. Das Natronsalz der Arsinsäure erhält man dadurch, daß man den im Vakuum eingedampften Rückstand der Natriumcarbonatlösung zweckmäßig mit Methylalkohollösung extrahiert. Die freie Arsinsäure ist aus der wäßrigen Lösung des Natriumsalzes durch schwaches Ansäuern bei geeigneter Konzentration auszufällen. Die Säure zersetzt sich, im Kapillarrohr erhitzt, bei etwa 23o°. Die Säure selbst und auch das Natronsalz können aus wäßrigem Alkohol umkristallisiert werden. Das Natronsalz ist in Methylalkohol leichter löslich als in Äthylalkohol.2. i g of 3-amido-q.-bromo-i-acetophenone are mixed with about 1.5 g of sodium arsenite and 0.5 g of copper powder in an aqueous-alcoholic solution for about 6 hours at about Heated 18o ° in the fused tube. The bromine atom is exchanged for the arsenic residue instead. After evaporation, any by-products that may have formed are removed by dissolving with sodium carbonate. The sodium salt of arsic acid is obtained by that one expediently the residue of the sodium carbonate solution evaporated in vacuo extracted with methyl alcohol solution. The free arsic acid is from the aqueous solution to precipitate the sodium salt by weak acidification at a suitable concentration. The acid decomposes when heated in the capillary tube at about 23o °. The acid itself and the sodium salt can also be recrystallized from aqueous alcohol. That Sodium salt is more soluble in methyl alcohol than in ethyl alcohol.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT468403X | 1922-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE468403C true DE468403C (en) | 1928-11-15 |
Family
ID=3674705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED43152D Expired DE468403C (en) | 1922-03-04 | 1923-02-04 | Process for the preparation of organic arsenic compounds |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE468403C (en) |
-
1923
- 1923-02-04 DE DED43152D patent/DE468403C/en not_active Expired
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