AT64863B - Process for the preparation of derivatives of aminooxyarylarsinic acids. - Google Patents

Process for the preparation of derivatives of aminooxyarylarsinic acids.

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Publication number
AT64863B
AT64863B AT64863DA AT64863B AT 64863 B AT64863 B AT 64863B AT 64863D A AT64863D A AT 64863DA AT 64863 B AT64863 B AT 64863B
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AT
Austria
Prior art keywords
acids
derivatives
preparation
aminooxyarylarsinic
acid
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German (de)
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Hoechst Ag
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Publication of AT64863B publication Critical patent/AT64863B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von Derivaten der Aminoxyarylarsinsäuren, 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 ausgewaschen und im Vakuum über   Schwefelsaure     getrocknet. Zum Unterschied vom   nicht   azetylierten Produkt   ist es bereits in Soda leicht löslich, nicht löslich in verdünnten   Sauren. Es löst sich   leicht in Azeton, weniger in Alkohol, gar nicht in Ather, Kohlenwasserstoffen, Wasser. Es schmilzt um 2000. 
 EMI1.4 
 rührt noch kurze Zeit durch, saugt dann die ausgeschiedene Oxyphenylurethanarsinsäure ab, wäscht sie mit Wasser und trocknet. Die Reduktion kann wie in Beispiel 1 ausgeführt werden und liefert das Arsenooxyphenylurethan als ein hellgelbes, mikrokristallinisches Pulver, nicht löslich in wässerigen Säuren, leicht löslich in Alkalien und Natriumkarbonat. 



   Beispiel 3 : Eine Lösung von   116'5g Aminophenolarsinsäure   in 750 cm3 Wasser und 250 cm3 zweifachnormaler Natronlauge wird nacheinander mit   120   g Kaliumcyanat und 12U cm3 Eisessig versetzt und   12   Stunden stehen gelassen. Aug der filtrierten Lösung kann die Oxyphenylharnstoffarsinsäure durch Salzsäure   unsgefallt   werden. 



   Die Reduktion liefert, in gleicher Weise wie oben ausgeführt, das   s Dikarbannnodioxy-   arsenobenzol, ein schwefelgelbes Pulver, leicht   löslich   in Soda, lÖslich in Azeton und Alkohol. nicht   löslich   in Ather, Wasser und wässerigen Säuren. Es zersetzt sich oberhalb 200  ohne scharfen   Schmelzpunkt.   

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of derivatives of aminoxyarylarsinic acids,
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 washed out and dried in vacuo over sulfuric acid. In contrast to the non-acetylated product, it is already easily soluble in soda, not soluble in dilute acids. It dissolves easily in acetone, less in alcohol, not at all in ether, hydrocarbons, or water. It melts around 2000.
 EMI1.4
 stir for a short time, then sucks off the oxyphenyl urethanarsinic acid which has separated out, washes it with water and dries. The reduction can be carried out as in Example 1 and gives the arsenooxyphenyl urethane as a pale yellow, microcrystalline powder, not soluble in aqueous acids, easily soluble in alkalis and sodium carbonate.



   Example 3: A solution of 116.5 g of aminophenolar acid in 750 cm3 of water and 250 cm3 of double normal sodium hydroxide solution is successively mixed with 120 g of potassium cyanate and 12U cm3 of glacial acetic acid and left to stand for 12 hours. In the filtered solution, the oxyphenylureaarsinic acid can be precipitated by hydrochloric acid.



   The reduction gives, in the same way as described above, the s dikarbannodioxyarsenobenzene, a sulfur-yellow powder, easily soluble in soda, soluble in acetone and alcohol. insoluble in ether, water and aqueous acids. It decomposes above 200 without a sharp melting point.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATEXT-AXMt'RUCH : Ausbiidung des Verfahrens des Patentes Nr. 48354, darin bestehend, dass man an Stelle der Nitro- und Aminoderivate von Oxyarylarsinsäure hier die Azylderivate der AminooxyarylarsinsaurenmitReduktionsmittelnbehandelt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATEXT-AXMt'RUCH: Development of the process of Patent No. 48354, which consists in treating the acyl derivatives of aminooxyarylarsic acids with reducing agents instead of the nitro and amino derivatives of oxyarylarsic acid. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT64863D 1909-06-09 1912-10-30 Process for the preparation of derivatives of aminooxyarylarsinic acids. AT64863B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE48354X 1909-06-09

Publications (1)

Publication Number Publication Date
AT64863B true AT64863B (en) 1914-05-11

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ID=5625957

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Application Number Title Priority Date Filing Date
AT48354D AT48354B (en) 1909-06-09 1910-04-15 Process for the preparation of amino derivatives of oxyarylarsinic acids and their reduction products.
AT64863D AT64863B (en) 1909-06-09 1912-10-30 Process for the preparation of derivatives of aminooxyarylarsinic acids.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT48354D AT48354B (en) 1909-06-09 1910-04-15 Process for the preparation of amino derivatives of oxyarylarsinic acids and their reduction products.

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AT (2) AT48354B (en)

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AT48354B (en) 1911-06-10

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