CH202420A - Process for producing an organic bromine compound. - Google Patents
Process for producing an organic bromine compound.Info
- Publication number
- CH202420A CH202420A CH202420DA CH202420A CH 202420 A CH202420 A CH 202420A CH 202420D A CH202420D A CH 202420DA CH 202420 A CH202420 A CH 202420A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- salt
- process according
- bromine compound
- monoester
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 150000005526 organic bromine compounds Chemical class 0.000 title description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052794 bromium Inorganic materials 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 4
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims description 3
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 claims description 2
- -1 bromine compound Chemical class 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003701 inert diluent Substances 0.000 claims description 2
- 239000012442 inert solvent Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 2
- 150000002730 mercury Chemical class 0.000 claims 2
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- QCNWZROVPSVEJA-UHFFFAOYSA-N Heptadecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCC(O)=O QCNWZROVPSVEJA-UHFFFAOYSA-N 0.000 description 2
- 229960000583 acetic acid Drugs 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 2
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 2
- PFNCOYVEMJYEED-UHFFFAOYSA-N 16-bromohexadecanoic acid Chemical compound OC(=O)CCCCCCCCCCCCCCCBr PFNCOYVEMJYEED-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
- C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
- C07C53/19—Acids containing three or more carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung einer organischen Bromverbindung. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung einer organischen Bromverbindung, das dadurch gekennzeich net ist, dass man auf ein Metallsalz eines Heptadecandisäure-1 . 17-monoesters elemen tares Brom einwirken lässt und den entstan denen 16-Bromhexadecansäure-l-ester mit einem verseifenden Mittel in die freie bro- mierte Monocarbonsäure überführt.
Die so erhaltene 16-Bromhexadecansäure-1 ist in der Literatur bereits beschrieben. Sie soll als Zwischenprodukt zur Herstellung von Riechstoffen und Arzneimitteln dienen.
Als besonders geeignet erwiesen sich das Silbersalz, die Mercuro- und Mercurisalze, sowie das Thallosalz der halbseitig verester- ten Dicarbonsäure.
Vorteilhaft arbeitet man in Gegenwart von indifferenten Lösungs- oder Verdün- nungsmitteln, wie Luft, CC14, CHC13 oder Äther.
Zur Verseifung des bromierten Monocar- bonsäureesters verwendet man mit Vorteil eine Eisessig-Bromwasserstofflösung.
Beispiel: Zu einer Aufschlämmung von 435 g Sil bersalz des Heptadecandisäuremonoesters in 800 g Tetrachlorkohlenstoff gibt man unter Vermeidung zu starker Erwärmung nach und nach 50 bis 55 cm' trockenes Brom, und zwar so lange, bis kein Brom mehr ver braucht wird. Die Lösung wird vom AgBr abfiltriert, das AgBr am Soxhlet mit Tetra chlorkohlenstoff extrahiert und die vereinig ten Filtrate destilliert.
Nach dem Entfernen des Tetrachlorkohlenstoffes wird der Rück stand mit Eisessig aufgenommen, abgekühlt und nach dem Filtrieren eines geringen Nie derschlages unter Zusatz von etwas HBr ver seift. Nach der Verseifung wird die Lösung mit Aktivkohle entfärbt und abgekühlt. Hierbei kristallisieren 230 g 16-Bromhexa- decanäure-1 vom F =<B>69-71'</B> aus; das sind <B>68,5%</B> der Theorie,
Process for producing an organic bromine compound. The subject of the present patent is a process for the preparation of an organic bromine compound, which is characterized in that a metal salt of a heptadecanedioic acid-1. 17-monoester elementary bromine can act and the resulting 16-bromohexadecanoic acid l-ester is converted into the free brominated monocarboxylic acid with a saponifying agent.
The 16-bromohexadecanoic acid-1 obtained in this way has already been described in the literature. It is intended to serve as an intermediate product in the manufacture of fragrances and drugs.
The silver salt, the mercurous and mercuric salts, and the thallo salt of the half-esterified dicarboxylic acid have proven to be particularly suitable.
It is advantageous to work in the presence of inert solvents or diluents, such as air, CC14, CHC13 or ether.
A glacial acetic acid / hydrogen bromide solution is advantageously used to saponify the brominated monocarboxylic acid ester.
Example: To a slurry of 435 g of the silver salt of the heptadecanedioic acid monoester in 800 g of carbon tetrachloride, avoiding excessive heating, gradually add 50 to 55 cm 'of dry bromine until no more bromine is consumed. The solution is filtered off from the AgBr, the AgBr is extracted with a Soxhlet with carbon tetrachloride and the combined filtrates are distilled.
After removing the carbon tetrachloride, the residue is taken up with glacial acetic acid, cooled and, after filtering a slight precipitate, soaped with the addition of a little HBr. After saponification, the solution is decolorized with activated charcoal and cooled. During this, 230 g of 16-bromohexadecanoic acid-1 crystallize out from the F = 69-71 '; that is <B> 68.5% </B> of the theory,
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH202420T | 1937-08-20 | ||
| CH199454T | 1938-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH202420A true CH202420A (en) | 1939-01-15 |
Family
ID=25723282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH202420D CH202420A (en) | 1937-08-20 | 1937-08-20 | Process for producing an organic bromine compound. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH202420A (en) |
-
1937
- 1937-08-20 CH CH202420D patent/CH202420A/en unknown
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