CH135387A - Process for the preparation of a condensation product of a phenol and a hydroaromatic ring ketone. - Google Patents
Process for the preparation of a condensation product of a phenol and a hydroaromatic ring ketone.Info
- Publication number
- CH135387A CH135387A CH135387DA CH135387A CH 135387 A CH135387 A CH 135387A CH 135387D A CH135387D A CH 135387DA CH 135387 A CH135387 A CH 135387A
- Authority
- CH
- Switzerland
- Prior art keywords
- condensation product
- phenol
- preparation
- ring ketone
- hydroaromatic ring
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Yeriahren zur Darstellung eines Kondensationsproduktes aus einem Phenol und einem hydroaromatischen Ringketon. Vorliegendes Patent bezieht sich auf ein Verfahren zur Darstellung eines neuen Kon densationsproduktes der Formel CIH11-C1H4-OH, dadurch gekennzeichnet, dass man das im schweizerischen Patent Nr. 134095 beschrie bene dreikernige Kondensationsprodukt aus Phenol und Oyklohexanon auf höhere Tem peraturen erhitzt.
Das so erhaltene Hexahydro-4-oxy-diphe- nyl zeigt die in der Literatur beschriebenen Eigenschaften (Wuyts, Bulletin de la Soe. Chim. de Belg., vol. 26, 304). <I>Beispiel 1:</I> 75 kg 4 . 4'-Dioxy diphenyl-1 . 1'-cyklo- hexan und 20 kg wasserfreies Chlorzink werden in einem Rührkessel geschmolzen. Bei etwa 200" tritt lebhaftes Sieden ein, während die Schmelze eine tiefblau violette Färbung annimmt. Hierbei geht ein unter gewöhnlichem Druck bei<B>1800</B> siedendes Destillat über.
Der Rückstand wird zur Entfernung des Chlorzinks mit verdünnter Salzsäure ausgezogen, dann mit Natronlauge heiss gelöst. Auf Zusatz von Kochsalz oder überschüssiger Lauge scheidet sich ein in breiten perlmutterglänzenden Kristallen aus fallendes schwer lösliches Natriumsalz aus, aus welchem durch Ansäuern und Umkri- stallisieren aus Benzol und Benzin oder ver dünntem Spiritus der in schneeweissen Nadeln vom Schmelzpunkt 128-129 kristallisie rende Phenolkörper erhalten wird.
Beispiel <I>2:</I> 150 kg 4.4'-Dioxydiphenyl-1.1'-cyklo- hexan werden auf 200 erhitzt und durch die Schmelze ein Strom von trockenem Salz säuregas hindurchgeleitet. Es beginnt sogleich ein lebhaftes, in der Vorlage erstarrendes Destillat überzugehen. Der Rückstand wird darauf im Vakuum destilliert und ein zwi schen etwa 180-2W1 siedendes, beim Ab kühlen rasch erstarrendes Destillat aufge fangen. Durch Umkristallisieren aus Benzin oder Benzol erhält man schneeweisse, stern förmig gruppierte lange Nädelchen vom Schmelzpunkt 128-129 .
Yeriahren to represent a condensation product of a phenol and a hydroaromatic ring ketone. The present patent relates to a process for the preparation of a new condensation product of the formula CIH11-C1H4-OH, characterized in that the trinuclear condensation product of phenol and cyclohexanone described in Swiss Patent No. 134095 is heated to higher temperatures.
The hexahydro-4-oxy-diphenyl obtained in this way shows the properties described in the literature (Wuyts, Bulletin de la Soe. Chim. De Belg., Vol. 26, 304). <I> Example 1: </I> 75 kg 4. 4'-dioxy diphenyl-1. 1'-cyclohexane and 20 kg of anhydrous zinc chloride are melted in a stirred kettle. At around 200 ", vigorous boiling occurs, while the melt takes on a deep blue-violet color. Here, a distillate boiling under normal pressure at <B> 1800 </B> passes over.
To remove the zinc chloride, the residue is extracted with dilute hydrochloric acid and then dissolved with hot sodium hydroxide solution. Upon addition of table salt or excess lye, a sparingly soluble sodium salt precipitates in broad pearlescent crystals, from which acidification and recrystallization from benzene and gasoline or diluted alcohol give the phenolic body crystallizing in snow-white needles with a melting point of 128-129 becomes.
Example <I> 2: </I> 150 kg of 4,4'-dioxydiphenyl-1,1'-cyclohexane are heated to 200 and a stream of dry hydrochloric acid gas is passed through the melt. A lively distillate that solidifies in the original begins immediately. The residue is then distilled in vacuo and a distillate which boils between about 180-2W1 and which quickly solidifies on cooling is collected. By recrystallizing from gasoline or benzene, snow-white, star-shaped, long needles with a melting point of 128-129 are obtained.
Claims (1)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE135387X | 1927-04-12 | ||
| DE20328X | 1928-03-02 | ||
| CH134621T | 1928-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH135387A true CH135387A (en) | 1929-09-15 |
Family
ID=27176997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH135387D CH135387A (en) | 1927-04-12 | 1928-04-07 | Process for the preparation of a condensation product of a phenol and a hydroaromatic ring ketone. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH135387A (en) |
-
1928
- 1928-04-07 CH CH135387D patent/CH135387A/en unknown
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