CH93576A - Process for the production of phenylglycine. - Google Patents
Process for the production of phenylglycine.Info
- Publication number
- CH93576A CH93576A CH93576DA CH93576A CH 93576 A CH93576 A CH 93576A CH 93576D A CH93576D A CH 93576DA CH 93576 A CH93576 A CH 93576A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- production
- phenylglycine
- salt
- aniline
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung von Plienylglyciu. Vorliegende Erfindung betrifft ein neues Verfahren zur Herstellung von Phenylglycin durch Verwendung von Trichloräthylen und Anilin in einem einzigen technischen Vorgang, indem man diese beiden in Wasser suspen dierten Körper mit einer alkalisch wirkenden Substanz, z.
B. 1@alkmilcb, unter Druck und bei einer Temperatur von ungefähr 1-10 <B>bis-</B> <B>1900</B> C erhitzt, bis daU) die ganze verwendete Menge in Phen3-lglycinaalz umgewandelt ist.
Dieses Herstellungsverfahren kann ohne Verwendung von Alkohol als Lösungsmittel und ohneAbsönderung der einzelnen Zwischen produkte ausgeführt werden. <I>Beispiel</I> Man erhitzt in einem finit Rührer ver- sehenen Autoklav en
EMI0001.0028
132 <SEP> Gewichtsteile <SEP> Triclilor < itlivlen
<tb> 100 <SEP> Kalk
<tb> 800 <SEP> ..
<SEP> Wasser
<tb> 280 <SEP> Anilin lütt die Temperatur bis zu ungefähr 180"C steigen, und lä1>t das Gemisch bei dieser Temperatur unter stetem Rühren während 2-1 Stunden stelieii. Der I;bersehuss von Anilin wird abdestilliert. Der Rückstand besteht aus einem Gemisch von Calciunisalz des Phenyl- glycins, einer Li;
sung von C'alciunicliloi-id und unverändertem Kalk. -Man filtriert nach dein Erkalten. Die kleine -Menge des Calciiun- salzes des Plienylgl3-cins, welche in der Mut terlauge bleibt, kann<B>als,</B> Eisensalz ausgefällt werden. Der feste auf dein Filter zurück bleibende Rest wird mit kohlensaurem oder kaustiscbein Alkali gekocht, uni das Alkali salz des Plienylgycins in Lösung zu erhalten.
Diese Lesung wird endlich bis zur Trockne eingedampft.
Process for the preparation of Plienylglyciu. The present invention relates to a new process for the production of phenylglycine by using trichlorethylene and aniline in a single technical process by these two suspended bodies in water with an alkaline substance, e.g.
B. 1 @ alkmilcb, heated under pressure and at a temperature of about 1-10 <B> to </B> <B> 1900 </B> C until the whole amount used is converted into phen3-glycine salt .
This manufacturing process can be carried out without the use of alcohol as a solvent and without the individual intermediate products being separated off. <I> Example </I> The autoclave is heated in a finite stirrer
EMI0001.0028
132 <SEP> parts by weight <SEP> Triclilor <itlivlen
<tb> 100 <SEP> lime
<tb> 800 <SEP> ..
<SEP> water
<tb> 280 <SEP> aniline causes the temperature to rise to approximately 180 ° C., and the mixture is left at this temperature with constant stirring for 2-1 hours. The excess aniline is distilled off. The residue persists from a mixture of calcium salt of phenylglycine, a Li;
Solution of C'alciunicliloi-id and unchanged lime. - You filter after you have cooled down. The small amount of the calcium salt of Plienylgl3-cin which remains in the mother liquor can be precipitated as an iron salt. The solid residue remaining on the filter is boiled with carbonate or caustic alkali in order to keep the alkali salt of plienylgycine in solution.
This reading is finally evaporated to dryness.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH93576T | 1920-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH93576A true CH93576A (en) | 1922-03-16 |
Family
ID=4351125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH93576D CH93576A (en) | 1920-11-16 | 1920-11-16 | Process for the production of phenylglycine. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH93576A (en) |
-
1920
- 1920-11-16 CH CH93576D patent/CH93576A/en unknown
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