DE696042C - Process for making urethanes - Google Patents

Process for making urethanes

Info

Publication number
DE696042C
DE696042C DE1938D0077719 DED0077719D DE696042C DE 696042 C DE696042 C DE 696042C DE 1938D0077719 DE1938D0077719 DE 1938D0077719 DE D0077719 D DED0077719 D DE D0077719D DE 696042 C DE696042 C DE 696042C
Authority
DE
Germany
Prior art keywords
urethanes
alcohol
alcohols
higher molecular
molecular weight
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
DE1938D0077719
Other languages
German (de)
Inventor
Dr Wolfgang Guendel
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.)
Deutsche Hydrierwerke AG
Original Assignee
Deutsche Hydrierwerke 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 Deutsche Hydrierwerke AG filed Critical Deutsche Hydrierwerke AG
Priority to DE1938D0077719 priority Critical patent/DE696042C/en
Application granted granted Critical
Publication of DE696042C publication Critical patent/DE696042C/en
Expired legal-status Critical Current

Links

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)
  • Polyurethanes Or Polyureas (AREA)

Description

Verfahren zur Herstellung von Urethanen Es wurde gefunden, daß ;man auf einfachem Wege zu Urethanen, insbesondere höhermolekularen Urethanen, gelangen kann, wenn man Chlorkohlensäureester acyclischer oder cyclischer Alkohole mit ammoniakabgebenden A=onsalzen zur Umsetzung bringt.Process for the preparation of urethanes It has been found that; one get in a simple way to urethanes, in particular higher molecular weight urethanes can, if you chlorocarbonic acid esters of acyclic or cyclic alcohols with ammonia-releasing Bringing A = onsalzen to implementation.

Als Ausgangsstoffe für , dieses Verfahren kommen Chlorkflhlensäureesteraller Art in Betracht die man in bekannter Weise durch Umsetzung von Alkoholen, insbesondere höhermolekularen Alkoholen, mit Phosgen erhält. Beispielsweise kann man als Ausgangsstoffe verwenden Chlorkohlensäureester aliphatis,cher Alkohole, wie Propylalköhol, Hexylalkohol, Diodecylalkohol, Hexa-decylalko-hol, Octadecylalkohol, Octadecenylalkohol, Oxyoctadecenylalkohol, ferner cyclischer Alkohole, ivie Cyclohexanol, Methylcyclohexanol, höhermolekulare Alkylreste enthaltende Cyclohexanole, Naphthenylalkohole, Abietylalkohol und andere Harzalkohole, Benzylalkoh o1, Phenol und Naphthole, "höhermolekulaxe Alkylreste enthaltende Phenole und Naphthßle u. dgl. Die Kohlenwasserstoffreste dieser Chlorkohlensäuredster können auch Heteroatome oder Heteroatomgruppen, wie Sauer-Stoff, Schwefel üsw., bzw. diese Atome :enthaltende Atomgruppen, wie z. B. Hydroxylgruppen, Estergruppen usw., enthalten.Chlorofluoric acid esters of all can be used as starting materials for this process Kind into consideration which one in a known manner by reaction of alcohols, in particular higher molecular weight alcohols with phosgene. For example, you can use as starting materials use chlorocarbonic acid esters aliphatic, cher alcohols, such as propyl alcohol, hexyl alcohol, Diodecyl alcohol, hexa-decyl alcohol, octadecyl alcohol, octadecenyl alcohol, oxyoctadecenyl alcohol, also cyclic alcohols, ivie cyclohexanol, methylcyclohexanol, higher molecular weight Cyclohexanols containing alkyl radicals, naphthenyl alcohols, abietyl alcohol and others Resin alcohols, benzyl alcohol, phenol and naphthols, "higher molecular weight alkyl radicals containing phenols and naphthalenes and the like can also heteroatoms or heteroatom groups, such as oxygen, sulfur, etc., or these atoms: containing groups of atoms, such as. B. hydroxyl groups, ester groups etc., included.

Die Chlo#rkohlensäureester werden @erfindungsgemäß mit Ammonsalzen, die Ammoniak abgeben, wie Ammoncarb,onat, Ammonacetat u. dgl., zurr Umsetzung gebracht, wobei unter Ersatz des Chloratoms dieser Ester durch eine N HZ-Gruppe die Urethane gebildet werden. Die Mitverwendung von Lösungsmitteln ist entbehrlich. Desgleichen kommt die Mitverwendung einer gasförmigen Reaktionskomponente in Wegfall.The carbonic acid esters are according to the invention with ammonium salts, which give off ammonia, such as ammonia carbonate, ammonium acetate and the like, brought to the reaction, with replacement of the chlorine atom of these esters by an N HZ group, the urethanes are formed. The use of solvents is unnecessary. Likewise the use of a gaseous reaction component is no longer necessary.

Die nach diesem Verfahren erhältlichen Urethane, insbesondere höhermolekulare Urethane, stellen wertvolle Zwfschenpro.dukte für die Herstellung technisch wichtiger chemischer Verbindungen dar;- insbesondere sind sie geeignet für die Herstellung von Textilbehandlungsmitteln, beispielsweise für das Wasserabstoßendmachen von Textilien und anderen Materialien, ferner zur Herstellung von Gerbstoffen, Schädlingsbekämpfungsmitteln usw. Beispiel In einem Rührkessel werden I oo Gewichtsteile Chlorkohlensäureoctadecyles.ter auf go bis ioo° angewärmt. Sodann werden unter Rühren portionsweise q.o Gewichtsteile fein gemahlenes Ammoncarbonateingetragen. Gegen Ende der Reaktion steigert man ,die Temperatur auf I2o°. Die Umsetzung verläuft vollständig. Das Reaktionsgut ward sodann in dem Lösungsmittel aufgelöst, in welchem die Weiterverarbeitung des Reaktionsproduktes erfolgen soll, worauf von den sich ausscheidenden anorganischen Bestandteilen abfiltriert wird. Will man .das Octadecyluxethan ,als solches rein -erhalten, löst man das Reaktionsprodukt in 3oo Gewichtsteilen Alkohol und überläßt die Lösung nach dem Filtrieren der Kristallisation. Man kann aber das Octadecylurethan auch durch Auswaschen mit Wasser von anorganischen Anteilen befreien.The urethanes obtainable by this process, especially higher molecular ones Urethanes are valuable intermediate products for the production technically important chemical compounds; - they are particularly suitable for the production of textile treatment agents, e.g. for making them water repellent of textiles and other materials, as well as for the production of tanning agents, pesticides etc. Example In a stirred tank, 100 parts by weight of chlorocarbonic acid octadecylates are added warmed up to 100 ° on go. Then q.o parts by weight are added in portions with stirring finely ground ammonium carbonate. Towards the end of the reaction you increase that Temperature to I2o °. The implementation is running completely. The reaction mixture was then dissolved in the solvent in which the further processing of the reaction product is to take place, whereupon the inorganic constituents which are separated out are filtered off will. If you want to get the octadecyluxethane as such pure, you dissolve the reaction product in 300 parts by weight of alcohol and leaves the solution to crystallization after filtration. However, the octadecyl urethane can also be removed from inorganic by washing with water Free shares.

Claims (1)

PATENTANSPLLUCII: Verfahren zur Herstellung von Urethanen; dadurch gekennzeichnet, daß man auf Chlorkohlensäureester von insbesondere höhermolekularen acyclischen und cyclischen Alkoholen ammoniakabgebende Ammonsalze einwirken läßt.PATENTANSPLLUCII: Process for the production of urethanes; through this characterized in that one is based on chlorocarbonic acid esters of, in particular, higher molecular weight Acyclic and cyclic alcohols ammonia-releasing ammonium salts can act.
DE1938D0077719 1938-04-09 1938-04-09 Process for making urethanes Expired DE696042C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1938D0077719 DE696042C (en) 1938-04-09 1938-04-09 Process for making urethanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938D0077719 DE696042C (en) 1938-04-09 1938-04-09 Process for making urethanes

Publications (1)

Publication Number Publication Date
DE696042C true DE696042C (en) 1940-09-09

Family

ID=7062521

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938D0077719 Expired DE696042C (en) 1938-04-09 1938-04-09 Process for making urethanes

Country Status (1)

Country Link
DE (1) DE696042C (en)

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