CH268456A - Process for the preparation of a basic ester. - Google Patents
Process for the preparation of a basic ester.Info
- Publication number
- CH268456A CH268456A CH268456DA CH268456A CH 268456 A CH268456 A CH 268456A CH 268456D A CH268456D A CH 268456DA CH 268456 A CH268456 A CH 268456A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- methyl
- acetic acid
- dimethyl
- ester
- Prior art date
Links
- 150000002148 esters Chemical class 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 8
- 238000002360 preparation method Methods 0.000 title claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 3
- -1 dimethyl-amino, ethyl Chemical class 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- 230000001225 therapeutic effect Effects 0.000 claims description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims 3
- 229960002887 deanol Drugs 0.000 claims 3
- KTHXOYWHJBTQNC-UHFFFAOYSA-N 2-methyl-2-propylpentanoic acid Chemical compound CCCC(C)(C(O)=O)CCC KTHXOYWHJBTQNC-UHFFFAOYSA-N 0.000 claims 2
- 150000007522 mineralic acids Chemical class 0.000 claims 1
- 150000007524 organic acids Chemical class 0.000 claims 1
- 235000005985 organic acids Nutrition 0.000 claims 1
- 125000004430 oxygen atom Chemical group O* 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
Verfahren zur Herstellung eines basischen Esters.
EMI0001.0002
Ue-ciistan <SEP> d <SEP> vorlie--enfen <SEP> Patentes <SEP> ist <SEP> ein
<tb> Verfahren <SEP> zur <SEP> IIerste:llung <SEP> eines <SEP> Basisehen
<tb> Esters. <SEP> Das <SEP> Verfahren <SEP> ist <SEP> dadurch <SEP> gekeini zeichnet., <SEP> dass <SEP> man <SEP> eine <SEP> Verbindung <SEP> der
<tb> Formel
EMI0001.0003
<B>t</B> auf eine Verbindung der Formel
EMI0001.0006
EMI0001.0007
worin <SEP> 1 <SEP> und <SEP> <B>#-</B> <SEP> zwei, <SEP> mit <SEP> Ausnahme <SEP> eines <SEP> in
<tb> einem <SEP> von <SEP> ihren <SEP> enthaltenen <SEP> Sauerstoff atoins, <SEP> sich <SEP> bei <SEP> der <SEP> Reaktion <SEP> abspaltende
<tb> Reste <SEP> bedeuten,
<SEP> einwirken <SEP> lässt.
<tb>
Die <SEP> neue <SEP> Verbindung <SEP> der <SEP> Dinietlivl-aniilio ä <SEP> t <SEP> livl <SEP> ester <SEP> der <SEP> I1Ieth <SEP> v <SEP> 1-di-n-propvl-essigsä <SEP> ure
<tb> ist <SEP> eine <SEP> Base <SEP> vom <SEP> Siedepunkt <SEP> <B>115-11811</B> <SEP> unter
<tb> 11 <SEP> nim <SEP> Druck. <SEP> Sie <SEP> lässt <SEP> sieh <SEP> mit <SEP> anor-arll sehen <SEP> oder <SEP> organischen <SEP> Säuren <SEP> in <SEP> Salze <SEP> über führen. <SEP> Sie <SEP> soll <SEP> therapeutische <SEP> Verwendung
<tb> finden.
<tb>
<I>P,c-aspiel:</I>
<tb> 17,7 <SEP> Teile <SEP> @et@vl-di-n-propvl-essi@säure c#lilorid <SEP> werden <SEP> unter <SEP> Rühren <SEP> zu <SEP> 8,9 <SEP> ¯Teilen
<tb> Dimetli@-1-aniinoiitlieniol <SEP> ,egeben, <SEP> wobei <SEP> Er wäi#nllilig <SEP> eintritt <SEP> und <SEP> das <SEP> Gemisch <SEP> hierauf
<tb> unter <SEP> Rühren <SEP> auf <SEP> <B>18011</B> <SEP> erhitzt, <SEP> bis <SEP> eine <SEP> homo gene <SEP> Schmelze <SEP> entstanden <SEP> ist. <SEP> Diese <SEP> wird <SEP> vor- teilhaft noch warm unter Zusatz von wenig verdünnter Salzsäure in Wasser gelöst und die wässrige Lösung einige Male ausgeä.thert. Hierauf wird mit konzentriertem Ammoniak die Base freigemacht und in Äther auf genommen.
Nach einmaligem Waschen der ätherischen Lösung mit Wasser und Trocknen wird das Lösungsmittel abdestilliert und der als Rückstand erhaltene basische Ester durch Destillation im Vakuum gereinigt. Dieser sie det bei 115-118 unter 11 mm Druck.
Die Reaktion kann auch in einem Lö sungsmittel, wie Benzol, Toluol, NvIol, Chlor benzol usw., ausgeführt werden. Man erhält in. diesem Fall, oft Bessere Ausbeuten bei Ver- u endun-# eines Überschusses an A.minoalkohol.
Statt des Säurechlorids kann man ein anderes Säurehalogenid oder das Anhv drid len oder auch einen Ester der Carbon- i ainvenc säure, z.
B. den lIetlivl-di-n-propv l.-essi"- säuremethylester mit Dimethzl-aminoäthanol in Gegenwart von Natritinia.lkoholat umsetzen, wobei vorteilhaft der entstehende 3Ietlivl- alkohol durch Destillation ans dein Reaktions gemisch entfernt wird.
Zum gleichen Endprodukt gelangt man auch, wenn man die llet.hvl-di-ir-propvl-essig- säure mit einem Dimethyl. - amiiloäthyl- halo-enid erhitzt oder ein Salz der Methyl-di- ir-pl#opvlessi,säure mit einem reaktionsfähigen Ester des Dim.etbvl-aniilioätlianols oder einem Salz desselben umsetzt.
Process for the preparation of a basic ester.
EMI0001.0002
Ue-ciistan <SEP> d <SEP> present <SEP> patent <SEP> is <SEP> a
<tb> Procedure <SEP> for <SEP> IIfirst: <SEP> establishment of a <SEP> basic marriage
<tb> Esters. <SEP> The <SEP> procedure <SEP> is <SEP> characterized by <SEP> not., <SEP> that <SEP> one <SEP> a <SEP> connection <SEP> of
<tb> formula
EMI0001.0003
<B> t </B> on a compound of the formula
EMI0001.0006
EMI0001.0007
where <SEP> 1 <SEP> and <SEP> <B> # - </B> <SEP> two, <SEP> with <SEP> exception <SEP> one <SEP> in
<tb> a <SEP> of <SEP> its <SEP> containing <SEP> oxygen atoins, <SEP> <SEP> splitting off <SEP> with <SEP> the <SEP> reaction <SEP>
<tb> residues <SEP> mean
<SEP> can take effect <SEP>.
<tb>
The <SEP> new <SEP> connection <SEP> der <SEP> Dinietlivl-aniilio ä <SEP> t <SEP> livl <SEP> ester <SEP> der <SEP> I1Ieth <SEP> v <SEP> 1-di -n-propvl-acetic acid <SEP> ure
<tb> is <SEP> a <SEP> Base <SEP> with a <SEP> boiling point <SEP> <B> 115-11811 </B> <SEP> under
<tb> 11 <SEP> nim <SEP> pressure. <SEP> You <SEP> lets <SEP> see <SEP> with <SEP> anor-arll see <SEP> or <SEP> organic <SEP> acids <SEP> in <SEP> salts <SEP>. <SEP> You <SEP> should <SEP> therapeutic <SEP> use
<tb> find.
<tb>
<I> P, c-a-game: </I>
<tb> 17.7 <SEP> parts of <SEP> @ et @ vl-di-n-propvl-essi @ säure c # lilorid <SEP> become <SEP> with <SEP> stirring <SEP> to <SEP> 8 , 9 <SEP> ¯Share
<tb> Dimetli @ -1-aniinoiitlieniol <SEP>, enter, <SEP> where <SEP> occurs <SEP> and <SEP> the <SEP> mixture <SEP> on top
<tb> with <SEP> stirring <SEP> heated to <SEP> <B> 18011 </B> <SEP>, <SEP> to <SEP> a <SEP> homogeneous <SEP> melt <SEP> was created < SEP> is. <SEP> This <SEP> is <SEP> advantageously dissolved in water while still warm with the addition of a little dilute hydrochloric acid and the aqueous solution is etherified several times. The base is then freed with concentrated ammonia and taken up in ether.
After the ethereal solution has been washed once with water and dried, the solvent is distilled off and the basic ester obtained as residue is purified by distillation in vacuo. This is at 115-118 under 11 mm pressure.
The reaction can also be carried out in a solvent such as benzene, toluene, NvIol, chlorobenzene and so on. In this case, better yields are often obtained when an excess of amino alcohol is used.
Instead of the acid chloride you can use another acid halide or the Anhv drid len or an ester of carboxylic acid, z.
B. implement the lIetlivl-di-n-propv l.-essi "- acid methyl ester with dimethzl-aminoethanol in the presence of Natritinia.lkoholat, whereby the resulting 3Ietlivl- alcohol is advantageously removed by distillation of the reaction mixture.
The same end product is obtained if the llet.hvl-di-ir-propvl-acetic acid is mixed with a dimethyl. - Amiiloäthylhalo-enid heated or a salt of methyl-di-ir-pl # opvlessi, acid with a reactive ester of Dim.etbvl-aniilioätlianols or a salt of the same.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH268456T | 1943-08-04 | ||
| CH261503T | 1943-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH268456A true CH268456A (en) | 1950-05-15 |
Family
ID=25730476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH268456D CH268456A (en) | 1943-08-04 | 1943-08-04 | Process for the preparation of a basic ester. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH268456A (en) |
-
1943
- 1943-08-04 CH CH268456D patent/CH268456A/en unknown
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