DE709982C - Process for the production of glycerol esters - Google Patents

Process for the production of glycerol esters

Info

Publication number
DE709982C
DE709982C DEI60460D DEI0060460D DE709982C DE 709982 C DE709982 C DE 709982C DE I60460 D DEI60460 D DE I60460D DE I0060460 D DEI0060460 D DE I0060460D DE 709982 C DE709982 C DE 709982C
Authority
DE
Germany
Prior art keywords
production
glycerol esters
glycide
nitrate
glycerol
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
DEI60460D
Other languages
German (de)
Inventor
Dr Walter Flemming
Dr Helmut Jacobi
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI60460D priority Critical patent/DE709982C/en
Application granted granted Critical
Publication of DE709982C publication Critical patent/DE709982C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/02Preparation of esters of nitric acid

Landscapes

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

Description

Verfahren zur Herstellung von Glycerinestern Es wurde gefunden, daß man in @einfacher Weise Monosalpetersäureester von Monoformyl- oder Monoacetylglyoerin erhält, wenn man Glycidnitrat mit Ameisensäure oder Essigsäure umsetzt.Process for the preparation of glycerol esters It has been found that one in @simple way monosnitric acid ester of monoformyl- or monoacetylglyoerin obtained when glycide nitrate is reacted with formic acid or acetic acid.

Die Umsetzung wird zweckmäßig in der Weise vorgenommen, daß man das Glycidnitrat mit einer etwa .äquimolekularen Menge Säure mischt und das Gemischeinige Zeit bei erhöhter Temperatur hält, bis die Anlagerung beendet ist. Man kann geringe Mengen von Metallchloriden, wie Ferrichlorid oder Zinkchlorid, zusetzen; jedoch üben sie keine wesentliche beschleunigende Wirkung aus. Die Umsetzung kann gewünschtenfalls auch in einem die Umsetzung nicht störenden Losungsmittel vorgenommen werden. Die so gebildeten Monosalpetersäureester von Monoformyl- oder Monoacetylglycerin lassen sich leicht durch Destillation des Umsetzungsgemisches gewinnen.The reaction is expediently carried out in such a way that the Mix glycide nitrate with about an equimolecular amount of acid and the mixture some Holds time at elevated temperature until the addition is complete. One can small Add amounts of metal chlorides such as ferric chloride or zinc chloride; However they have no significant accelerating effect. The implementation can if desired can also be carried out in a solvent which does not interfere with the reaction. the so formed mono-nitric acid ester of monoformyl or monoacetyl glycerol leave easily obtained by distilling the reaction mixture.

Die nach dem vorliegenden Verfahren leicht zugänglichen Ester eignen sich vorzüglich als Beimischungen zu Glycerintrinitrat oder anderen flüssigen Sprengstoffen, um diese schwerer gefrierbar zu machen. Beispiel i Man vermischt 238 Teile Glycidnitrat mit i o5 Teilen g i %iger Ameisensäure. Die Mischung erwärmt sich von selbst, und man hält die Temperatur etwa a Stunden lang auf 95 bis too . Durch Destillation unter vermindertem Druck erhält man aus dein Umsetzungsgemisch das Glycerinmonofor miatmononitrat vom Kp= "n, - 125 bis 126- in einer Ausbeute von etwa 75"e. Die Umsetzung vollzieht sich wahrscheinlich im @e der Gleicliung Beispiel 2 Man erwärmt eine Mischung von 238 Teilen Glycidnitrat mit i 5o Teilen Eisessig 15 Minuten lang auf 95 bis i oo-. D,urch Destillation erhält man fast vollständig reines Glycerinm,onoacetatmononitrat vom Kp2 """ = 124 bis 125- (Ausbeute etwa 719). The esters which are easily accessible according to the present process are particularly suitable as admixtures to glycerol trinitrate or other liquid explosives in order to make them more difficult to freeze. EXAMPLE 1 238 parts of glycide nitrate are mixed with 10 5 parts of solid formic acid. The mixture heats up by itself, and the temperature is kept at 95 to too much for about a hour. The glycerol monofor is obtained from the reaction mixture by distillation under reduced pressure miatmononitrate from Kp = "n, - 125 to 126- in a yield of about 75 "e. The Implementation will probably take place in @e the equation EXAMPLE 2 A mixture of 238 parts of glycide nitrate with 15o parts of glacial acetic acid is heated to 95 to 10o for 15 minutes. Almost completely pure glycerol monoacetate mononitrate with a bp2 """= 124 to 125- (yield about 719) is obtained by distillation.

Setzt man 1,5 Teile Ferrichlorid zu, so vollzieht sich die Umsetzung nur wenig schneller. Man arbeitet in diesem Falle unter Auswaschen des Ferrichlorids mit wenig Wasser, Ausschütteln mit verdünnter Sodalösung und Trocknen mit wasserfreiem N atriumsulfat auf.If 1.5 parts of ferric chloride are added, the reaction takes place just a little faster. In this case, the ferric chloride is washed out with a little water, shaking out with dilute soda solution and drying with anhydrous Sodium sulfate.

Claims (1)

PATENTAIVSPRUCH: Verfahren zur Herstellung von Glv- cerinestern, dadurch gekennzeichnet, dal--@ man Glycidnitrat finit Ameisensäure udei- Essigsäure umsetzt.
PATENTAIV CLAIM: Process for the production of Glv- cerin star, characterized by dal - @ glycide nitrate finitely formic acid Acetic acid converts.
DEI60460D 1938-02-11 1938-02-11 Process for the production of glycerol esters Expired DE709982C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI60460D DE709982C (en) 1938-02-11 1938-02-11 Process for the production of glycerol esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI60460D DE709982C (en) 1938-02-11 1938-02-11 Process for the production of glycerol esters

Publications (1)

Publication Number Publication Date
DE709982C true DE709982C (en) 1941-09-01

Family

ID=7195240

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI60460D Expired DE709982C (en) 1938-02-11 1938-02-11 Process for the production of glycerol esters

Country Status (1)

Country Link
DE (1) DE709982C (en)

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