CH235441A - Process for the preparation of a monoaryl substitution product of melamine. - Google Patents

Process for the preparation of a monoaryl substitution product of melamine.

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Publication number
CH235441A
CH235441A CH235441DA CH235441A CH 235441 A CH235441 A CH 235441A CH 235441D A CH235441D A CH 235441DA CH 235441 A CH235441 A CH 235441A
Authority
CH
Switzerland
Prior art keywords
monoaryl
melamine
substitution product
preparation
phenetidine
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
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
Publication of CH235441A publication Critical patent/CH235441A/en

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Description

  

  Verfahren zur Herstellung eines     Monoarylsubstitutionsproduktes    des     Melamins.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Monoaryl-          substitutionsproduktes    des     Melamins,    da  durch     gekennzeichnet,    dass man     ein    mineral  saures Salz von     p-Phenetidin    auf einen     Thio-          ammelinäther    in Gegenwart eines     Verdün-          nungsmittels        einwirken    lässt.  



  Das so erhaltene     Mono-4'-methoxyphenyl-          melaniin    ist ein neuer Körper. Er     schmilzt     bei 21.8 bis 219  (das Chlorhydrat bei 268 bis  269 ) und soll als     Zwischenprodukt    zur Her  stellung von harzartigen Kondensationspro  dukten     Verwendung    finden.

      <I>Beispiel:</I>    686 kg     p-Phenetidin    und 49 kg Salzsäure       (apez.        Gew.    =     1,19)        werden;    in etwa 2'500  Liter heissem Wasser gelöst und mit 785 kg       Thioammelin-methyläther    so lange gekocht,  bis kein unverändertes     p-Phenetidin    mehr  nachweisbar ist.

   Die Lösung, welche das  Chlorhydrat des Umsetzungsproduktes ent  hält, wird heiss von     geringen        Abscheidungen            abfiltriert.    Nach dem Erkalten wird die Base  durch Zusatz von 58 kg Natronlauge 40      B6     als farblose Kristallmasse abgeschieden,     mit     Wasser neutral gewaschen und getrocknet.  Das so erhaltene     Mono-4'-methoxy-phenyl-          melamin    kann durch     Umkristallisieren    aus       Butanol    noch weiter     gereinigt    werden.



  Process for the preparation of a monoaryl substitution product of melamine. The present patent relates to a process for the production of a monoaryl substitution product of melamine, characterized in that a mineral acid salt of p-phenetidine is allowed to act on a thioamine ether in the presence of a diluent.



  The mono-4'-methoxyphenylmelaniin thus obtained is a new body. It melts at 21.8 to 219 (the chlorohydrate at 268 to 269) and is said to be used as an intermediate for the manufacture of resinous condensation products.

      <I> Example: </I> 686 kg of p-phenetidine and 49 kg of hydrochloric acid (apez. Wt. = 1.19); Dissolved in about 2,500 liters of hot water and boiled with 785 kg of thioammelin methyl ether until no unchanged p-phenetidine can be detected.

   The solution, which contains the chlorohydrate of the reaction product, is filtered off hot from small deposits. After cooling, the base is deposited as a colorless crystal mass by adding 58 kg of sodium hydroxide solution 40 B6, washed neutral with water and dried. The mono-4'-methoxyphenylmelamine obtained in this way can be purified even further by recrystallization from butanol.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono- arylsubstitutionsproduktes des Melamins, da durch gekennzeichnet, dass man ein mineral saures Salz von p-Phenetidin auf einen Thio- ammelinäther in Gegenwart eines Verdün- nungsmittels einwirken lässt. Das so erhaltene Mono-4'-methoxyphenyl- melamin 'ist ein neuer Körper. PATENT CLAIM: Process for the production of a monoaryl substitution product of melamine, characterized in that a mineral acid salt of p-phenetidine is allowed to act on a thioamine ether in the presence of a diluent. The mono-4'-methoxyphenylmelamine obtained in this way is a new body. Er schmilzt bei 218 bis 219 (dass Chlorhydrat bei 268 bis 269 ) und soll als Zwischenprodukt zur Her stellung von harzartigen Kondensationspro dukten Verwendung finden. It melts at 218 to 219 (the chlorohydrate at 268 to 269) and is said to be used as an intermediate for the manufacture of resinous condensation products.
CH235441D 1942-01-30 1943-01-18 Process for the preparation of a monoaryl substitution product of melamine. CH235441A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235441X 1942-01-30
CH232886T 1943-01-18

Publications (1)

Publication Number Publication Date
CH235441A true CH235441A (en) 1944-11-30

Family

ID=25727763

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235441D CH235441A (en) 1942-01-30 1943-01-18 Process for the preparation of a monoaryl substitution product of melamine.

Country Status (1)

Country Link
CH (1) CH235441A (en)

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