DE499436C - Process for the preparation of a condensation product from m-cresol and acetone - Google Patents

Process for the preparation of a condensation product from m-cresol and acetone

Info

Publication number
DE499436C
DE499436C DEC40520D DEC0040520D DE499436C DE 499436 C DE499436 C DE 499436C DE C40520 D DEC40520 D DE C40520D DE C0040520 D DEC0040520 D DE C0040520D DE 499436 C DE499436 C DE 499436C
Authority
DE
Germany
Prior art keywords
acetone
cresol
preparation
condensation product
hydrochloric acid
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
DEC40520D
Other languages
German (de)
Inventor
Dr Reinhard Clerc
Hans Jordan
Professor Dr Walter Schoeller
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.)
Schering Kahlbaum AG
Original Assignee
Schering Kahlbaum 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 Schering Kahlbaum AG filed Critical Schering Kahlbaum AG
Priority to DEC40520D priority Critical patent/DE499436C/en
Application granted granted Critical
Publication of DE499436C publication Critical patent/DE499436C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung eines Kondensationsproduktes aus m-Kresol und Aceton Nach dem Verfahren des Patents 494 Sog wird ein neuartiges Kondensatlonsproclukt aus rii-Kresol und Aceton in der Weise gewonnen, daß man die Komponenten bei gewöhnlicher Temperatur kondensiert und dafür sorgt, daß keine Selbsterwärmung eintritt.Process for the preparation of a condensation product from m-cresol and acetone A novel condensate product is produced using the process of patent 494 suction obtained from rii-cresol and acetone in such a way that one of the components in ordinary Temperature condenses and ensures that no self-heating occurs.

;Es hat sich nun als vorteilhaft erwiesen, die Kondensation bei noch tieferer Temperatur durchzuführen, indem man, z. B. mit Eis oder Kältemischungen, stark abkühlt. Bei Verwendung .gasförmiger Salzsäure ist es ferner zweckmäßig, die zu kondensierenden Komponenten für sich mit gasförmiger Salzsäure zu sättigen, dann stark zu kühlen und erst dann miteinander zu, vermischen. Dief gleichen Maßnahmen lassen sich auch auf die in dem früheren Zusatzpatent 497 414 beschriebene Ausführungsform des Verfahrens anwenden. Durch diese Reaktionsbedingungen ist eine erhebliche Steigerung der Aus; beute erreichbar. Beispiel I Aceton und ein geringer über#&chuß von m-Kresö#l werden unter guter Kühlung hei, o° bis 5° mit gasförmiger Salzsäure gesättigt und unter Rühren mehrere Stunden bei dieser Temperatur gehalten. Nach dem Auswaschen der Salzsäure mit Wasser erstarrt der Rückstand zu einem Kristallbrei, aus dem die neue Verbindung abgetrennt wird.; It has now been found to be beneficial to keep the condensation at still carry out lower temperature by, for. B. with ice or cold mixtures, cools down considerably. When using .gaseous hydrochloric acid, it is also advisable to use the To saturate components to be condensed with gaseous hydrochloric acid, then to cool strongly and only then to mix together. Same measures can also be applied to the embodiment described in the earlier additional patent 497,414 of the procedure. These reaction conditions result in a considerable increase the off; prey attainable. Example I Acetone and a little over # & shot of m-Kresö # l are saturated with gaseous hydrochloric acid with good cooling hot, 0 ° to 5 ° and kept at this temperature for several hours with stirring. After washing out the hydrochloric acid with water solidifies the residue to a crystal pulp from which the new connection is disconnected.

Beispiel 2 Äquimolekulare Mengen Aoeton ( I Mol.) und m-Kresol (2 Mol.) werden, jedes für sich getrennt, mit gasförmiger SglzsäuTe gesättigt, dann stark gekühlt und zusammengegeben. Die Aufarbeitung erfolgt wie in Beispiel I.Example 2 Equimolecular amounts of aoetone (1 mol.) And m-cresol (2 Mol.) Are, each separately, saturated with gaseous SglzäuTe, then strongly chilled and combined. The work-up is carried out as in Example I.

Beispiel 3 Molekulare Mengen m-Kresol (2 Mol.) und Aceton. (I Mol.) werden unter sehr guter Kühlung mit gastförmiger Salzsäure gesättigt, dann ein überschuß an wasserfreiem Magnesiumsul#fat zugegeben und unter Rühren einige Stunden bei Temperaturen unter o° gehalten. Die Aufarbeitung erfolgt wie in Beispiel z.Example 3 Molecular amounts of m-cresol (2 moles) and acetone. (I mol.) be under very good cooling saturated with gastric hydrochloric acid, then an excess of anhydrous magnesium sulfate was added and a few were added while stirring Held at temperatures below 0 ° for hours. The work-up is carried out as in the example z.

Claims (1)

PATENTANSPRLCHI:: --i. Abänderung der durch Patent 494 Sog und Zusatzpatent 497 4 14 geschützten Verfahren zur Darstellung -eines Kondensationsproduktes aus m-Kresicl und Aceton, dadurch gekennzeichnet, daß man die Kondensation in der Kälte durchführt. a. Ausführungsform des Verfahrens nach Anspruch i, dadurch gekennzeichnet, daß man jede Komponente für sich mit gasförmiger Salzsäure sättigt, stark kühlt und dann erst die Mischung vollzieht.PATENT APPLICATION :: --i. Modification of suction by patent 494 and additional patent 497 4 14 protected process for the preparation of a condensation product m-cresicl and acetone, characterized in that the condensation is carried out in the cold performs. a. Embodiment of the method according to claim i, characterized in that that each component is saturated with gaseous hydrochloric acid, strongly cooled and only then does the mixture complete.
DEC40520D 1927-10-11 1927-10-11 Process for the preparation of a condensation product from m-cresol and acetone Expired DE499436C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC40520D DE499436C (en) 1927-10-11 1927-10-11 Process for the preparation of a condensation product from m-cresol and acetone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC40520D DE499436C (en) 1927-10-11 1927-10-11 Process for the preparation of a condensation product from m-cresol and acetone

Publications (1)

Publication Number Publication Date
DE499436C true DE499436C (en) 1930-06-06

Family

ID=7024199

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC40520D Expired DE499436C (en) 1927-10-11 1927-10-11 Process for the preparation of a condensation product from m-cresol and acetone

Country Status (1)

Country Link
DE (1) DE499436C (en)

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