CH235443A - Process for the preparation of a monoaryl substitution product of melamine. - Google Patents
Process for the preparation of a monoaryl substitution product of melamine.Info
- Publication number
- CH235443A CH235443A CH235443DA CH235443A CH 235443 A CH235443 A CH 235443A CH 235443D A CH235443D A CH 235443DA CH 235443 A CH235443 A CH 235443A
- Authority
- CH
- Switzerland
- Prior art keywords
- monoaryl
- melamine
- substitution product
- preparation
- production
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Monoarylsubstitutionsprodulites des Nelamins. Vorliegendes Patent bezieht sich auf ein Verfahren zur Herstellung eines Monoaryl- substitutionsproduktes des Melamins, da durch gekennzeichnet, dass man ein mineral saures Salz von a-Naphthylaxnin auf einen Thioammelinäther in Gegenwart eines Ver dünnungsmittels einwirken lässt.
Das so erhaltene Mono-1'-naphthylmel- amin ist ein neuer Körper vom Schmelzpunkt 201 bis 202 . Es soll als Z-sischenprodukt zur Herstellung von harzartigen Kondensations produkten Verwendung finden.
<I>Beispiel:</I> 897 kg a-Naphthylamin-chlorhydrat wer den mit 85.5 kg Thioammelin-äthyläther und etwa 8500 Liter Äthylalkohol so lange unter Rückfluss gekocht, bis kein unverändertes a-Naphthylamin mehr nachweisbar ist.
Man destilliert den Alkohol bis zur beginnenden Kristallisation ab und lässt das Chlorhydrat der Base in der Kälte auskristallisieren.. Die Base wird aus dem abgeschiedenen Chlor- hydrat durch Verrühren mit überschüssiger Sodalösung in Freiheit gesetzt, abgesaugt; mit Wasser gewaschen und im Vakuum bei 70 getrocknet.
Die Base nimmt beim Um kristallisieren aus. Äthylalkohol ein Mol Kristallalkohol auf, welcher beim- Erhitzen auf 12'5 abgespalten wird.
Process for the preparation of a monoaryl substitution product of nelamine. 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 α-naphthylaxnin is allowed to act on a thioammelin ether in the presence of a diluent.
The mono-1'-naphthylmelamine thus obtained is a new body with a melting point of 201 to 202. It is intended to be used as a Z-mixture product for the production of resinous condensation products.
<I> Example: </I> 897 kg of a-naphthylamine chlorohydrate are refluxed with 85.5 kg of thioammelin ethyl ether and around 8500 liters of ethyl alcohol until unchanged a-naphthylamine can no longer be detected.
The alcohol is distilled off until the start of crystallization and the hydrochloride of the base is allowed to crystallize in the cold. The base is set free from the separated hydrochloride by stirring with excess soda solution, and is suctioned off; washed with water and dried at 70 in vacuo.
The base crystallizes out on order. Ethyl alcohol has one mole of crystalline alcohol, which is split off when heated to 12'5.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE235443X | 1942-01-30 | ||
| CH232886T | 1943-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH235443A true CH235443A (en) | 1944-11-30 |
Family
ID=25727765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH235443D CH235443A (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) | CH235443A (en) |
-
1943
- 1943-01-18 CH CH235443D patent/CH235443A/en unknown
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