DE753128C - Process for the production of diureas - Google Patents

Process for the production of diureas

Info

Publication number
DE753128C
DE753128C DEI71461D DEI0071461D DE753128C DE 753128 C DE753128 C DE 753128C DE I71461 D DEI71461 D DE I71461D DE I0071461 D DEI0071461 D DE I0071461D DE 753128 C DE753128 C DE 753128C
Authority
DE
Germany
Prior art keywords
weight
parts
acetone
solution
diureas
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
DEI71461D
Other languages
German (de)
Inventor
Herbert Dr Bestian
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 DEI71461D priority Critical patent/DE753128C/en
Application granted granted Critical
Publication of DE753128C publication Critical patent/DE753128C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D203/00Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom
    • C07D203/04Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D203/06Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D203/16Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with acylated ring nitrogen atoms
    • C07D203/20Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with acylated ring nitrogen atoms by carbonic acid, or by sulfur or nitrogen analogues thereof, e.g. carbamates

Description

Verfahren zur Herstellung von Diharnstoffen Ifs wurde gefunden, daß man Diharnstoffe erhält, wenn man aliphatische oder araliphatische Diisocyanate in Gegenwart von Lü.ungs- oder Verdünnungsmitteln mit Äthylenimiii oder dessen Homologen umsetzt. Durch Umsetzung von aliphatischen oder araliphatischen Diisocyanaten mit Alkyleniminen oder seinen Homologen erhält man Diharustoffe der allgemeinen Formel = I Iomologe, worin R einen zweiwertigen aliplu atischen oder araliphatischen Kohlenwasserstoffrest bedeutet. Die Produkte fallen im allgemeinen in großer Reinheit an oder können durch Umlösung von Verunreinigun--eti befreit werden; sie können in der Textil-, Papier- und Lederindustrie Verwendung finden. Beispiele i. i, S-Octamethylendiätliylenliarnstoff: Zu einer Lösung von 196 Gewichtsteilen i, S-Octamethylendiisocyanat in 6oo Gewichtsteilen Aceton läßt man unter Rühren und Kühlung eine Lösung von 9o Gewichtsteilen Äthylenimin in 25o Gewichtsteilen Aceton langsam zufließen. Dabei scheidet sich das obige Harnstoffderiv at in Kristallform aus. Der Kristallbrei wird bei o° abgesaugt, mit kaltem Aceton gewaschen und dann im Vakuumschrank von anhaftendem Aceton befreit. Man erhält in go%iger Ausbeute ein schneeweißes Kristallpulver vom F. ioi°. 2. 1, 6-Hexamethylendiäthylenliarnstoff: Zu einer Lösung von 168 Gewichtsteilen i, 6-Hexamethylendiisocyanat in 6oo Gewichtsteilen Aceton läßt man nach der Vorschrift des Beispiels i eine Lösung von 9o Gesichtsteilen Äthylenimin in Aceton langsam zufließen. An Stelle von Aceton kann auch Benzol als Lösungsmittel verwendet werden. Der Diharnstoff fällt in Form eines weißen lockeren Kristallpulvers vom F. io6`' an. Ausbeute: 95% der Theorie. 3. 1, -1.-Tetramethylendiäthylenharnstoff: Zu einer Lösung von 140 Gewichtsteilen i, -I.-Tetramethylendiisocvanat in Aceton läßt man nach der Vorschrift des Beispiels i eine Lösung von 9o Gewichtsteilen Ä-',vlenimin in Aceton langsam zufließen. Der Diliarnstoff fällt in Form eines weißen lockeren Kristallpulvers vom F. 1:210 an. Ausbeute: 94,50/0 der Theorie. .[. i, 6-Hexamethylendipropylenliarnstoff: Zu einer Lösung von 5,4. Gewichtsteilen i, 6-Hexamethylendiisocyanat in 3o Gewichtsteilen Äther läßt man unter Kühlung eine Lösung von 5,7 Gewichtsteilen i, 2-Propylenimin in 2o Gewichtsteilen Äther zufließen. Das gebildete Harnstotfderivat der oh» gen l,'ormel scheidet sich in Form eines nicht kristallisierenden Öles aus und wird vom Äther abgetrennt. Reste vom :ltlier werden im Vakuum entfernt. Man erhält die Verbindung in Form eines farblosen Öles. Ausbeute: 97% der Theorie. 5. p-Xvlyleiicliätliyleiiliarnstoff: 7.u einer Lösung von 188 Gewichtsteilen 1)-\ylylendiisocyanat in Aceton gibt man nach der Vorschrift des Beispiels i 9o Gewiclitsteile Äthylenimin in Aceton. Der Diliarristoff fällt in Form eines lockeren Kristallpulvers vom F. 144,5 bis i4.6° an. Ausbeute: oo 0!o der Theorie.Process for the preparation of diureas Ifs it has been found that diureas are obtained if aliphatic or araliphatic diisocyanates are reacted with ethylene oxide or its homologues in the presence of air or diluents. The reaction of aliphatic or araliphatic diisocyanates with alkyleneimines or its homologues gives diurates of the general formula = I homologue, where R is a divalent aliphatic or araliphatic hydrocarbon radical. The products are generally obtained in great purity or can be freed from contamination by dissolving; they can be used in the textile, paper and leather industries. Examples i. i, S-octamethylene diethyl ether: A solution of 90 parts by weight of ethyleneimine in 250 parts by weight of acetone is slowly added to a solution of 196 parts by weight of i, S-octamethylene diisocyanate in 600 parts by weight of acetone, with stirring and cooling. The above urea derivative separates out in crystal form. The crystal sludge is filtered off with suction at 0 °, washed with cold acetone and then freed from adhering acetone in a vacuum cabinet. A snow-white crystal powder of F. ioi ° is obtained in a good% yield. 2. 1, 6-hexamethylene diethylene liarnea: To a solution of 168 parts by weight of i, 6-hexamethylene diisocyanate in 600 parts by weight of acetone, a solution of 90 parts by weight of ethyleneimine in acetone is allowed to slowly flow in according to the instructions of Example 1. Instead of acetone, benzene can also be used as a solvent. The diurea is obtained in the form of a white, loose crystal powder from F. io6` '. Yield: 95% of theory. 3. 1, -1.-Tetramethylene diethylene urea: To a solution of 140 parts by weight of i, -I-tetramethylene diisocvanate in acetone, a solution of 90 parts by weight of A - ', vlenimine in acetone is allowed to slowly flow in according to the instructions of Example i. The diliar is obtained in the form of a white, loose crystal powder with a ratio of 1: 210. Yield: 94.50 / 0 of theory. . [. i, 6-Hexamethylenedipropylenliarnea: To a solution of 5.4. Parts by weight of i, 6-hexamethylene diisocyanate in 30 parts by weight of ether are allowed to flow in with cooling a solution of 5.7 parts by weight of i, 2-propyleneimine in 20 parts by weight of ether. The urinary derivative of the above oil is precipitated in the form of a non-crystallizing oil and is separated from the ether. Remnants of the: ltlier are removed in vacuo. The compound is obtained in the form of a colorless oil. Yield: 97% of theory. 5. p-Xvlyleiicliätliyliarnstoff: 7. To a solution of 188 parts by weight of 1) -lylene diisocyanate in acetone, 90 parts by weight of ethyleneimine in acetone are added according to the instructions in Example 1. The Diliarristoff falls in the form of a loose crystal powder from the F. 144.5 to 14.6 °. Yield: oo 0! O the theory.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Diharnstoffen, dadurch gekennzeichnet, daß man aliphatische oder araliphatische Diisocyanate in Gegenwart von Lösungs- oder Verdünnungsmitteln mit Äthylenimin oder dessen Homologen umsetzt. PATENT CLAIM: Process for the preparation of diureas, characterized in that aliphatic or araliphatic diisocyanates are reacted with ethyleneimine or its homologues in the presence of solvents or diluents.
DEI71461D 1939-02-18 1939-02-18 Process for the production of diureas Expired DE753128C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI71461D DE753128C (en) 1939-02-18 1939-02-18 Process for the production of diureas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI71461D DE753128C (en) 1939-02-18 1939-02-18 Process for the production of diureas

Publications (1)

Publication Number Publication Date
DE753128C true DE753128C (en) 1952-11-24

Family

ID=7197173

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI71461D Expired DE753128C (en) 1939-02-18 1939-02-18 Process for the production of diureas

Country Status (1)

Country Link
DE (1) DE753128C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8779068B2 (en) 2010-06-29 2014-07-15 3M Innovative Properties Company Aziridinyl-containing compounds
US8796390B2 (en) 2010-06-29 2014-08-05 3M Innovative Properties Company Grafted compounds formed from aziridinyl-containing compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8779068B2 (en) 2010-06-29 2014-07-15 3M Innovative Properties Company Aziridinyl-containing compounds
US8796390B2 (en) 2010-06-29 2014-08-05 3M Innovative Properties Company Grafted compounds formed from aziridinyl-containing compounds

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