DE844006C - Process for the production of morpholines - Google Patents

Process for the production of morpholines

Info

Publication number
DE844006C
DE844006C DEB10333A DEB0010333A DE844006C DE 844006 C DE844006 C DE 844006C DE B10333 A DEB10333 A DE B10333A DE B0010333 A DEB0010333 A DE B0010333A DE 844006 C DE844006 C DE 844006C
Authority
DE
Germany
Prior art keywords
morpholines
morpholine
production
cyclohexyl
ethyl
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
DEB10333A
Other languages
German (de)
Inventor
Emil Dr Weiss
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB10333A priority Critical patent/DE844006C/en
Application granted granted Critical
Publication of DE844006C publication Critical patent/DE844006C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/023Preparation; Separation; Stabilisation; Use of additives

Description

Verfahren zur Herstellung von Morpholinen Es wurde gefunden, da13 man Morpholine in einfacher Weise herstellen kann, indem man ß, ß'-Dioxyäthylarnine der allgemeinen Formel in der R = Wasserstoff, Alkyl, Aryl, Aralkyl oder Cycloalkyl bedeutet, bei höheren Temperaturen in der Gasphase über wasserabspaltende Katalysatoren leitet.Process for the preparation of morpholines It has been found that morpholines can be prepared in a simple manner by adding β, β'-dioxyethylamines of the general formula in which R = hydrogen, alkyl, aryl, aralkyl or cycloalkyl, passes over dehydrating catalysts at higher temperatures in the gas phase.

Geeignete Ausgangsstotte sind z. B. das Diäthanolamin, N-Methyl-, -Äthyl-, -Benzyl-, -Cyclohexyl-oder -B.utyl-diäthanolamin, ferner das Di-(oxyäthyl)-anilin und seine Homologen und Kernsubstitution;sprodukte. Als wasserabspaltende Katalysatoren kann man Aluminiumoxyd mit oder ohne aktivierende Zusätze, wie Thoriumoxyd oder auch Bauxit, verwenden. Die günstigsten Temperaturen sind von Fall zu Fall etwas verschieden; sie liegen im allgemeinen bei etwa 28o bis 35o°. Man kann bei gewöhnlichem oder vermindertem Druck arbeiten.Suitable starting stotters are, for. B. the diethanolamine, N-methyl-, -Ethyl-, -Benzyl-, -Cyclohexyl- or -B.utyl-diethanolamine, also the di- (oxyethyl) -aniline and its homologues and nuclear substitution products. As dehydrating catalysts you can use aluminum oxide with or without activating additives, such as thorium oxide or also use bauxite. The most favorable temperatures are somewhat from case to case different; they are generally around 28o to 35o °. One can with ordinary or work under reduced pressure.

Die auf diese Weise leicht und in guten Ausbeuten erhältlichen Morpholine sind wertvolle Zwischenprodukte für Textilhilfsmittel und Farbstoffe. Beispiel Man leitet durch ein t m langes und 5 cm weites Rohr aus Porzellan oder rostfreiem Stahl, das mit 6oo cm:' eines 5% Thoriumoxyd enthaltenden Alu- miniumoxydkatalysators beschickt ist, bei 3oo bis 3 10' stündIidt @ ioo g - il~i=(öxyäthp1)-anilin, das aus einem Verdampfer von 5o l Stickstoff mitgeführt wird. Das das Rohr verlassende Reaktionsgemisch wird gekühlt und durch Schichtentreanung bzw. fraktionierte Destillation vom entstandenen Wasser befreit. Man erhält auf diese Weise stündlich 5o_ bis 659 N-Phenyl-morpholin; das unter gewöhn- lichem Druck bei 26o bis 265°, unter i mm Druck bei i o5 bis i t o° siedet. In entsprechender Weise erhält man aus D(oxy- äthyl)-m-toluidin: N-(m-Tolyl)-morpholin, IKp76p 265 bis 27o°, Kpl= i io bis i 15°; aus Di-(öxy- äthyl)-m-chloranilin: N-(m-Chlorphenyl)-morpholin, Kpl= 123 bis 125°; aus Di-(oxy4thyl)-cyclohexyl- amin: N-Cyclohexyl-morpholin,'Kppo= 13obis 135"; aus Di-(oxyäthyl)-butylamin: N-Butyl-morpholin, . _ .. , __ Kpqo = 77 bis g". The morpholines which can be obtained easily and in good yields in this way are valuable intermediates for textile auxiliaries and dyes. EXAMPLE One passes through a 1 m long and 5 cm wide tube made of porcelain or stainless steel, which with 600 cm: 'of an aluminum containing 5% thorium oxide miniumoxide catalyst is charged, at 3oo to 3 10 ' stündIidt @ ioo g - il ~ i = (öxyäthp1) -aniline, that from an evaporator of 5o l nitrogen carried along will. The reaction mixture leaving the tube is cooled and removed by stratification resp. fractional distillation of the resulting water freed. In this way you get 5o_ every hour to 659 N-phenyl-morpholine; that under usual Lich pressure at 26o to 265 °, under i mm pressure boils at i o5 to ito °. In a corresponding way, one obtains from D (oxy- ethyl) -m-toluidine: N- (m-tolyl) -morpholine, IKp76p 265 to 27o °, Kpl = i io to i 15 °; from di- (öxy- ethyl) -m-chloroaniline: N- (m-chlorophenyl) -morpholine, Kpl = 123 to 125 °; from di- (oxy4thyl) -cyclohexyl- amine: N-cyclohexyl-morpholine, 'Kppo = 13 to 135 "; from di- (oxyethyl) -butylamine: N-butyl-morpholine, . _ .., __ Kpqo = 77 to g ".

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Morpholinen, dadurch gekennzeichnet, daß man ß, ß'-Dioxyäthylamine von der allgemeinen Zusammensetzung worin R i Wasserstoffatom, eine Alkyl-, Aryl-, Aralkyl- oder Cycloalkylgruppe bedeutet, bei höheren Temperaturen in Dampfform über wasserabspaltende Katalysatoren leitet.PATENT CLAIM: Process for the preparation of morpholines, characterized in that ß, ß'-Dioxyäthylamine of the general composition where R i denotes a hydrogen atom, an alkyl, aryl, aralkyl or cycloalkyl group, passes in vapor form over dehydrating catalysts at higher temperatures.
DEB10333A 1950-09-28 1950-09-28 Process for the production of morpholines Expired DE844006C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB10333A DE844006C (en) 1950-09-28 1950-09-28 Process for the production of morpholines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB10333A DE844006C (en) 1950-09-28 1950-09-28 Process for the production of morpholines

Publications (1)

Publication Number Publication Date
DE844006C true DE844006C (en) 1952-07-14

Family

ID=6956747

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB10333A Expired DE844006C (en) 1950-09-28 1950-09-28 Process for the production of morpholines

Country Status (1)

Country Link
DE (1) DE844006C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125572A (en) * 1964-03-17 Morpholine compounds substituted in

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125572A (en) * 1964-03-17 Morpholine compounds substituted in

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