DE501852C - Process for the preparation of 1,3-butylenediurethane - Google Patents

Process for the preparation of 1,3-butylenediurethane

Info

Publication number
DE501852C
DE501852C DEI36129D DEI0036129D DE501852C DE 501852 C DE501852 C DE 501852C DE I36129 D DEI36129 D DE I36129D DE I0036129 D DEI0036129 D DE I0036129D DE 501852 C DE501852 C DE 501852C
Authority
DE
Germany
Prior art keywords
butylene glycol
excess
butylenediurethane
weight
parts
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
DEI36129D
Other languages
German (de)
Inventor
Dr Richard Leopold
Dr Max Paguin
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 DEI36129D priority Critical patent/DE501852C/en
Application granted granted Critical
Publication of DE501852C publication Critical patent/DE501852C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06Esters of carbamic acids

Landscapes

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

Description

Verfahren zur Herstellung von 1, 3-Butylendiurethan Versucht nian, das bisher nicht bekannte 1, 3-Butvleiidiuretliaii durch Einwirkung von i Mol. i, 3-Butylenglvkol und 2 Mol. Harnstoff aufeinander zu gewinnen, so erhält man, besonders bei Anwendung höherer Temperaturen. Gemische, welche neben Diurethan und \tonourethan in reichlicher lZenge amorphe, nicht definierbare -Nebenprodukte enthalten. Die Ausbeuten an Diurethan sind nach dem Aufarbeiten dieser Gemische nur gering.Process for the production of 1, 3-butylenediurethane Tried nian, the previously unknown 1, 3-Butvleiidiuretliaii by the action of i Mol. i, To win 3-butylene glycol and 2 moles of urea on top of each other, so one obtains, especially when using higher temperatures. Mixtures, which in addition to diurethane and \ tonourethane Contains ample quantities of amorphous, indefinable by-products. the Yields of diurethane are only low after these mixtures have been worked up.

E: wurde nun gefunden, daß bei der Verwendung eines Überschusses von Butvlenglykol und bei Anwendung von Temperaturen, die zweckmäßig zwischen ioo und 2oo° liegen, Reaktionsprodukte erhalten werden, die mir Mono- und Diurethan neben dem überschüssigen unveränderten Butylenglykol enthalten. Die Umsetzung kann auch unter Verwendung von hochsiedendenVerdünnungsmitteln vorgenommen werden. Das Reaktionsgeinisch wird dann in üblicher Weise zur Gewinnung des gut kristallisierenden Diurethans aufgearbeitet.E: It has now been found that when using an excess of butylene glycol and when using temperatures which are expediently between 100 and 200 °, reaction products are obtained which contain mono- and di-urethane in addition to the excess unchanged butylene glycol. The reaction can also be carried out using high boiling diluents. The reaction mixture is then worked up in the customary manner to obtain the diurethane which crystallizes well.

Das i, 3-Butylendiuretlian hat sich als sehr geeigneter Zusatz bei Küpenfarbstoffcn im Zeugdruck erwiesen. Beispiel Ein Gemisch aus 5oo Gewichtsteilen 1, 3-Butvlenglykol und zoo Gewichtsteilen Har nstofi wird auf 170 bi, i8o' erhitzt und unter Rühren bei dieser Temperatur gehalten. Unter reichlicherAminoniakent-,vicklung bleibt das Reaktionsgemisch ,4 Stunden am Sieden;. Alsdann wird im Vakuum abdestilliert: Bi: 14.5° bei io mm destilliert fast reines Butvlenglykol (etwa 215 Gewichtsteile), von 1._j.5 bis 2oo° bei io mm eine Fraktion, die im wesentlichen aus dem bei i7o bis iSo° bei io mm siedenden Butylenmonourethan besteht (etwa 25o Gewichtsteile). Der noch warme Rückstand wird mit der gleichen Menge Wasser gemischt, bei o° längere Zeit stehengelassen, dann abgenutscht, noch einmal mit Eiswasser gedeckt und getrocknet. Man erhält 128 Gewichtsteile technisch reines Diumtlian, welches einer Ausbeute von 43,7 °1" der Theorie entspricht. Aus den Wasserfiltraten kann durch Eindampfen noch Monourethan gewonnen werden, das zusammen mit dein durch Destillation gewonnenen mit Butvlenglvkol und Harnstoff weiter auf Diurethan verarbeitet werden kann.The 1,3-butylenediuretane has proven to be a very suitable additive for vat dyes in fabric printing. EXAMPLE A mixture of 500 parts by weight of 1,3-butylene glycol and zoo parts by weight of urea is heated to 170 parts by weight and kept at this temperature with stirring. The reaction mixture remained at the boil for 4 hours with ample development of ammonia. Then it is distilled off in vacuo: Bi: 14.5 ° at 10 mm distilled almost pure butylene glycol (about 215 parts by weight), from 1._j.5 to 200 ° at 10 mm a fraction which essentially consists of that at 170 to 15 ° at 10 mm of boiling butylene monourethane (about 250 parts by weight). The still warm residue is mixed with the same amount of water, left to stand at 0 ° for a long time, then suction filtered, covered again with ice water and dried. 128 parts by weight of technically pure silicon are obtained, which corresponds to a theoretical yield of 43.7 °. Monourethane can also be obtained from the water filtrates by evaporation, which can be further processed into diurethane together with the butylene glycol and urea obtained by distillation .

Das 1, 3-Butylenditirethan stellt ein gut kristallisierendes Salz vom F. Y. 152° und Siedepunkt 26o° dar. Bei etwa 23o° beginnt Zersetzung unter Abspaltung von Ammoniak, wobei sich amorphe gelbe wasserlösliche Massen bilden. Es löst sich schwer in kaltem Wasser, Alkohol Oder Aceton, leicht in heißem Wasser, Alkohol oder Aceton; es ist unlöslich in Ather, Benzol und Benzin.1,3-Butyleneditirethane is a salt that crystallizes well from the F. Y. 152 ° and boiling point 26o °. At about 23o ° decomposition begins with splitting off of ammonia, whereby amorphous yellow water-soluble masses are formed. It dissolves heavy in cold water, alcohol or acetone, light in hot water, alcohol or Acetone; it is insoluble in ether, benzene, and gasoline.

Claims (1)

PATr,NTAN SPRUCII: Verfahren zur- Herstellung von I, 3-ButvIendiurethän aus I, 3-Butylengly kol und Harnstoff, dadurch gekennzeichnet, claß man einen Überschuß von I, 3-Butylenglykol anwendet, die Reaktion bei Temperaturen zwischen ioo und 2oo° durchführt und das gebildete kristalline Diurethan in üblicher Weise von dem flüssigen Monourethan und dem überschüssigen liutylcnglyl:ol trennt.PATr, NTAN SPRUCII: Process for the production of I, 3-ButvIendiurethän from I, 3-butylene glycol and urea, characterized in that one claß an excess of I, 3-butylene glycol applies the reaction at temperatures between ioo and Performs 2oo ° and the crystalline diurethane formed in the usual manner from the liquid monourethane and the excess liutylcnglyl: ol separates.
DEI36129D 1928-11-17 1928-11-17 Process for the preparation of 1,3-butylenediurethane Expired DE501852C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI36129D DE501852C (en) 1928-11-17 1928-11-17 Process for the preparation of 1,3-butylenediurethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI36129D DE501852C (en) 1928-11-17 1928-11-17 Process for the preparation of 1,3-butylenediurethane

Publications (1)

Publication Number Publication Date
DE501852C true DE501852C (en) 1930-07-04

Family

ID=7189168

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI36129D Expired DE501852C (en) 1928-11-17 1928-11-17 Process for the preparation of 1,3-butylenediurethane

Country Status (1)

Country Link
DE (1) DE501852C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627524A (en) * 1949-11-17 1953-02-03 Jefferson Chem Co Inc Hydroxy carbamates and process of producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627524A (en) * 1949-11-17 1953-02-03 Jefferson Chem Co Inc Hydroxy carbamates and process of producing same

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