AT91238B - Process for the preparation of allylarsic acid. - Google Patents
Process for the preparation of allylarsic acid.Info
- Publication number
- AT91238B AT91238B AT91238DA AT91238B AT 91238 B AT91238 B AT 91238B AT 91238D A AT91238D A AT 91238DA AT 91238 B AT91238 B AT 91238B
- Authority
- AT
- Austria
- Prior art keywords
- acid
- allylarsic
- preparation
- allylarsinic
- allyl
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- 229940000488 arsenic acid Drugs 0.000 description 3
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- -1 allyl arsenic acid Chemical compound 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- BHELZAPQIKSEDF-UHFFFAOYSA-N allyl bromide Chemical compound BrCC=C BHELZAPQIKSEDF-UHFFFAOYSA-N 0.000 description 1
- GCPXMJHSNVMWNM-UHFFFAOYSA-N arsenous acid Chemical class O[As](O)O GCPXMJHSNVMWNM-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Allylarsinsäure.
Ein Verfahren zur Darstellung von. Allylarsinsäure ist noch nicht bekannt. Es wurde nun gefunden, dass die Gewinnung der Allylarsinsäure und deren Salze leicht und mit guter Ausbeute erfolgt, wenn man Alkaliarsenite mit Allylhalogeniden behandelt. Die auf diese Weise erhaltene Allylarsinsäure entspricht der Formel
EMI1.1
EMI1.2
<Desc/Clms Page number 2>
EMI2.1
von Kochsalz in Lösung, aus der die gewünschte Säare durch Einengen und Auskristallisieren erhalten werden kann. Durch Umkristallisieren aus Wasser entfernt man nötigenfalls geringe Beimengungen arseniger Säure. Die Ausbeute ist gut.
EMI2.2
flüssigkeit keine arsenige Säure mehr nachzuweisen ist. Die Reaktion geht unter mässiger Wärmeentwicklung vor sich.
Das überschüssige Allylbromid und der durch Verseifung entstandene Allylalkohol werden nach vorherigem Wasserzusatz durch Destillation entfernt, worauf die Allylarsinsäure zweck- mässig wie in Beispiel 1 gewonnen wird.
<Desc / Clms Page number 1>
Process for the preparation of allylarsic acid.
A method of representing. Allylarsinic acid is not yet known. It has now been found that allyl arsenic acid and its salts can be obtained easily and with good yield if alkali arsenites are treated with allyl halides. The allylarsinic acid obtained in this way corresponds to the formula
EMI1.1
EMI1.2
<Desc / Clms Page number 2>
EMI2.1
of common salt in solution, from which the desired acid can be obtained by concentration and crystallization. If necessary, small additions of arsenic acid are removed by recrystallization from water. The yield is good.
EMI2.2
arsenic acid can no longer be detected in the liquid. The reaction proceeds with moderate development of heat.
The excess allyl bromide and the allyl alcohol formed by saponification are removed by distillation after the previous addition of water, whereupon the allylarsinic acid is advantageously obtained as in Example 1.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH91238X | 1920-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT91238B true AT91238B (en) | 1923-02-10 |
Family
ID=4348584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT91238D AT91238B (en) | 1920-07-26 | 1921-05-10 | Process for the preparation of allylarsic acid. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT91238B (en) |
-
1921
- 1921-05-10 AT AT91238D patent/AT91238B/en active
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