DE850752C - Process for the preparation of 1,3-oxido-2-oxymethyl-2-halomethylpropane - Google Patents

Process for the preparation of 1,3-oxido-2-oxymethyl-2-halomethylpropane

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Publication number
DE850752C
DE850752C DER152A DER0000152A DE850752C DE 850752 C DE850752 C DE 850752C DE R152 A DER152 A DE R152A DE R0000152 A DER0000152 A DE R0000152A DE 850752 C DE850752 C DE 850752C
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DE
Germany
Prior art keywords
oxido
oxymethyl
preparation
halomethylpropane
chem
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DER152A
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German (de)
Inventor
Friedrich Dr Boedecker
Hans Dr Volk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Riedel de Haen AG
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Riedel de Haen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Riedel de Haen AG filed Critical Riedel de Haen AG
Priority to DER152A priority Critical patent/DE850752C/en
Application granted granted Critical
Publication of DE850752C publication Critical patent/DE850752C/en
Expired legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D305/00Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms
    • C07D305/02Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings
    • C07D305/04Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D305/06Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von 1, 3-Oxido-2-oxymethyl-2-halogenmethylpropan Gegenstand der Erfindung ist ein Verfahren zur Herstellung von 1, 3-Oxido-2-oxvmethyl-2-halogenmethylpropan.Process for the preparation of 1, 3-oxido-2-oxymethyl-2-halomethylpropane The invention relates to a process for the preparation of 1,3-oxido-2-oxvmethyl-2-halomethylpropane.

Von der allgemeinen Formel (in der \ Halogen bedeutet) sich ableitende Abkömmlinge des Tetramethylmethans, die i, 3-Oxido-2-oxymethyl-2-halogenmethyIpropane, sind bisher noch nicht bekannt. Lediglich die um 1 @@ol Halogenwasserstoff ärmere Verbindung, das doppelte Anitv(lrid desPentaerythrits,wird als 2, 6-l)ioxaspiro-3, 3-heptan in der Literatur beschrieben. Nach Angaben von S. F. M a r r i a n geht man zur Herstellung dieser Verbindung von dem Pentaerythritdibromhvdrin aus und setzt dasselbe bei erhöhter Temperatur mit in einem vielfachen Überschuß angewendeter alkoholischer Kalilauge in 2o- bis 25O/-oiger Ausbeute um.From the general formula (in which \ halogen means) derived derivatives of tetramethylmethane, the i, 3-oxido-2-oxymethyl-2-halogenomethyl propane, are not yet known. Only the compound less by 1 @@ ol hydrogen halide, the double anion (iride des pentaerythritol, is described in the literature as 2,6-l) ioxaspiro-3,3-heptane. According to SF M arrian, this compound is prepared from pentaerythritol dibromohydrin and reacted at elevated temperature with alcoholic potassium hydroxide solution, which is used in a multiple excess, in a yield of 20 to 250%.

Ferner ist es bekamst, von Trihalogen.monooxydürivaten des Tetramethylmethans ausgehend, unter einseitiger RingschlußbilJung Verbindungen herzustellen, die neben einem sauerstoffhaltigen Ring Halogen in der Seitenkette enthaltene und in denen das Halogen infolge Abwesenheit einer weiteren reaktionsbereiten Gruppe, wie Hydroxyl, auch unter dem Einfluß starker Alkalien nicht abgespalten wird, so daß die Herstellung dieser Verbindungen. keine besonderen Schwierigkeiten bereitet.It is also obtained from Trihalogen.monooxydürivaten of tetramethylmethane starting to establish connections with one-sided ring closure formation, the next an oxygen-containing ring halogen contained in the side chain and in which the halogen due to the absence of another reactive group, such as hydroxyl, also under is not split off under the influence of strong alkalis, so making these connections. does not cause any particular difficulties.

Die Herstellung einer Verbindung, die im Molekül neben Halogen noch eine Hydroxylgruppe enthält, mußte dagegen, da schon die relativ einfach vorzunehmende Abspaltung des gesamten Halogenwasserstoffes aus dem Pentaerythritdtibromhydrin narr zu 20 bis 25 % den gewünschten Verlauf nimmt, als sehr schwer durchführbar erscheinen. Bei der Gleichartigkeit der beiden Halogenatome im Dihalogenhydrin und der Anwesenheit zweier Hyd.roxylgruppen war es nicht zu erwarten, daß bei nur einseitiger Ringbildung ein verhältnismäßig einfacher Reaktionsverlauf stattfinden würde, vielmehr mußte die Bildung schwer angenommen werden.The production of a compound that is in the molecule in addition to halogen contains a hydroxyl group, on the other hand, had to be done, since the one that is relatively easy to carry out All of the hydrogen halide is split off from the pentaerythritol tibromohydrin foolishly to 20 to 25% takes the desired course, as very difficult to carry out appear. Given the similarity of the two halogen atoms in dihalohydrin and the presence of two hydroxyl groups, it was not to be expected that only one-sided Rather, ring formation would take place a relatively straightforward course of the reaction education had to be accepted with difficulty.

Es wurde nun die überraschende Feststellung gemacht, daß man dennoch die bisher unbekannten i, 3-Oxido-2-oxymet'hyl-2-halogenmethylpropane in reiner Form gewinnen kann, wenn man Dihalogenhydrine des Tetrametfhylolmethans in der Kälte mit der molaren Menge Älkal,ialkoholat, insbesondere den Alkoholaten höhermolekularer Alkohole, zur Umsetzung bringt und das entstehende Reaktionsprodukt durch Destillation unter vermindertem Druck isoliert.The surprising finding has now been made that one nevertheless the hitherto unknown i, 3-oxido-2-oxymethyl-2-halomethylpropane in pure Can gain shape by taking dihalohydrins of tetramethylolmethane in the cold with the molar amount of alkali, alkoxide, especially the alcoholates of higher molecular weight Alcohols, and the resulting reaction product by distillation isolated under reduced pressure.

Die neuen Verbindungen können als solche oder als Zwischenprodukte, beispielsweise zur Herstellung von Arzneimitteln und infolge ihrer Wasserlöslichkeit zur Herstellung von Arzneimittelzubereitungen, Verwendung finden. Beispiel 26,2 g Pentaerythritdibromhydrin werden in 50 ccm i-Propylalkohol gelöst. Unter Rühren und Kühlen wird eine Lösung von 2,3 g Natrium in i ,5o ccm i-Propylalkohol zugetropft. Die i-Propylatlösung muß, um ein Auskristallisieren dies Natriuma.lkoholats zu verhindern, schwach angewärmt werden. Nach etwa io Stunden ist die Umsetzung beendet. Man saugt nun vom abgeschiedenen Natriumbromid ab und destilliert vom Filtrat den größten Teil des Alkohols ab. Den Rückstand nimmt man mit wenig Wasser und Benzol auf. Die wäßrige Schicht wird noch einige Male mit Benzol ausgeschüttelt, die vereinigten lknzolauszüge werden eingedampft, und der Rückstand wird im Vakuum destilliert. Das so erhaltene 1, 3-Oxido-2-oxymethyl-2-brommethylpropan geht als dickes, farbloses 01 vom Siedepunkt 105 bis io9° (i bis 2 mm) über. Es ist in Wasser, Alkohol, Benzol und Äther leicht, in Benzin schwer löslich. Beim Behandeln der wäßrigen Lösung mit Halogenwasserstoffsäuren kristallisieren unter Aufspaltung der Sauerstoffbrücke die entsprechenden Dihalogenhydrine aus; bei Anwendung von Bromwasserstoffsäure bildet sich das Dibromhydrin zurück.The new compounds can be used as such or as intermediates, for example for the production of medicaments and, owing to their solubility in water, for the production of medicament preparations. Example 26.2 g of pentaerythritol dibromohydrin are dissolved in 50 cc of i-propyl alcohol. A solution of 2.3 g of sodium in 1.5o ccm of i-propyl alcohol is added dropwise with stirring and cooling. The i-propylate solution must be warmed slightly to prevent this sodium alcoholate from crystallizing out. The reaction has ended after about 10 hours. The sodium bromide which has separated out is then suctioned off and most of the alcohol is distilled off from the filtrate. The residue is taken up with a little water and benzene. The aqueous layer is extracted a few more times with benzene, the combined extracts of oil are evaporated and the residue is distilled in vacuo. The thus obtained 1, 3-oxido-2-oxymethyl-2-brommethylpropan is as a thick, colorless 01 of boiling point 105 to about io9 ° (i to 2 mm). It is easily soluble in water, alcohol, benzene and ether, but poorly soluble in gasoline. When the aqueous solution is treated with hydrohalic acids, the corresponding dihalohydrins crystallize out with splitting of the oxygen bridge; when hydrobromic acid is used, the dibromohydrin is regressed.

DieAusbeute an i, 3-Oxido-2-oxymethyl-2-brommethylpropan beträgt io bis 12 g, das sind 6o bis 66 % der Theorie.The yield of i, 3-oxido-2-oxymethyl-2-bromomethylpropane is io up to 12 g, that is 60 to 66% of theory.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 1, 3-Oxido-2-oxymethyl-2-1h"alogenmethylpropan, dadurch gekennzeichnet, daß man Dihalogen'hydrine des Tetramethylolmet:hanis in der Kälte mit der molaren Menge Alkalialkoholat, insbesondere den Alkoholaten höhermollekularer Alkohole, zur Umsetzung bringt und das Reaktionsprodukt nach an sich üblicher Methode durch Destillation unter vermindertem Druck isoliert. Angezogene Druckschriften: Chem. Rev. 43, S. 162 bis 164; Journ. chem. Soc., i946, S. 386. PATENT CLAIM: Process for the preparation of 1, 3-oxido-2-oxymethyl-2-1h "alogenmethylpropane, characterized in that dihalogenhydrins of tetramethylolmet: hanis are used in the cold with the molar amount of alkali alcoholate, in particular the alcoholates of higher molecular alcohols Brings reaction and the reaction product is isolated by a method customary per se by distillation under reduced pressure. Cited publications: Chem. Rev. 43, pp. 162 to 164; Journ. Chem. Soc., 1946, p. 386.
DER152A 1949-10-26 1949-10-26 Process for the preparation of 1,3-oxido-2-oxymethyl-2-halomethylpropane Expired DE850752C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER152A DE850752C (en) 1949-10-26 1949-10-26 Process for the preparation of 1,3-oxido-2-oxymethyl-2-halomethylpropane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER152A DE850752C (en) 1949-10-26 1949-10-26 Process for the preparation of 1,3-oxido-2-oxymethyl-2-halomethylpropane

Publications (1)

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DE850752C true DE850752C (en) 1952-09-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2794027A (en) * 1957-05-28 Tkeparation
DE1030352B (en) * 1954-01-28 1958-05-22 Hercules Powder Co Ltd Process for the preparation of 3,3-bis (chloromethyl) oxacyclobutane
DE1030353B (en) * 1954-06-01 1958-05-22 Hercules Powder Co Ltd Process for the preparation of 3,3-bis (chloromethyl) oxacyclobutane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2794027A (en) * 1957-05-28 Tkeparation
DE1030352B (en) * 1954-01-28 1958-05-22 Hercules Powder Co Ltd Process for the preparation of 3,3-bis (chloromethyl) oxacyclobutane
DE1030353B (en) * 1954-06-01 1958-05-22 Hercules Powder Co Ltd Process for the preparation of 3,3-bis (chloromethyl) oxacyclobutane

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