DE495717C - Process for the preparation of C-alkyl derivatives in the core of halogen-substituted cresols - Google Patents

Process for the preparation of C-alkyl derivatives in the core of halogen-substituted cresols

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Publication number
DE495717C
DE495717C DEI32592D DEI0032592D DE495717C DE 495717 C DE495717 C DE 495717C DE I32592 D DEI32592 D DE I32592D DE I0032592 D DEI0032592 D DE I0032592D DE 495717 C DE495717 C DE 495717C
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DE
Germany
Prior art keywords
core
halogen
alkyl derivatives
preparation
cresols
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
DEI32592D
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German (de)
Inventor
Dr Fritz Guenther
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.)
IG Farbenindustrie AG
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
Priority to DEI32592D priority Critical patent/DE495717C/en
Application granted granted Critical
Publication of DE495717C publication Critical patent/DE495717C/en
Expired legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11Preparation 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11Preparation 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
    • C07C37/14Preparation 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 by addition reactions, i.e. reactions involving at least one carbon-to-carbon unsaturated bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11Preparation 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
    • C07C37/16Preparation 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 by condensation involving hydroxy groups of phenols or alcohols or the ether or mineral ester group derived therefrom

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Verfahren zur Herstellung von C-Allkylderivaten im Kern halogensubstituierter Kresole Es wurde gefunden, daß man bisher noch nicht bekannte wertvolle Derivate im Kern chlorsubstituierter o-Kresole erhalten kann, welche noch weitere Alkylgruppen im--Kernenthalten, wenn man kernchlorierte o-Kresole in Gegenwart von Kondensationsmitteln mit Alkoholen behandelt, die im Molekül mehr als zwei Kohlenstoffatom-e enthalten. Beispielsweise kann das i-Methyl-2-oxy-5-chlorbenzol auf diese Weise leicht in C-Alkylderivate übergeführt werden. Als Alkohole sind hierfür insbesondere die Propyl- und die Butylalkohole geeignet. Die Alkohole können als solche oder in Form ihrer Ester verwandt werden, man kann auch die den Alkoholen entsprechenden Olefine benutzen.Process for the preparation of C-alkyl derivatives in the nucleus halogen-substituted Cresols It has been found that hitherto unknown valuable derivatives can obtain chlorine-substituted o-cresols in the core, which contain further alkyl groups - contained in the core, if one uses o-cresols chlorinated in the nucleus in the presence of condensing agents treated with alcohols that contain more than two carbon atoms in the molecule. For example, the i-methyl-2-oxy-5-chlorobenzene can easily be converted into C1-4 alkyl derivatives in this way be transferred. The alcohols for this purpose are, in particular, the propyl and butyl alcohols suitable. The alcohols can be used as such or in the form of their esters, the olefins corresponding to the alcohols can also be used.

Die C-alkylierten chlorhaltigen o-Kresole zeichnen sich durch eine hervorragende bakterizide Wirkung aus und besitzen ün Gegensatz zu den nicht alkylierten, mit einem äußerst starken und unangenehmen. Geruch behafteten Produkten den Vorteil fast völliger Geruchlosigkeit. Sie sind ferner erheblich weniger flüchtig als die letzteren, eine Eigenschaft, die bei der Verwendung der Produkte als Desinfektionsmittel von größter Bedeutung ist.The C-alkylated chlorine-containing o-cresols are characterized by a have an excellent bactericidal effect and, in contrast to the non-alkylated, with an extremely strong and unpleasant. Odor-prone products have the advantage almost complete odorlessness. They are also significantly less volatile than that the latter, a property that comes with the use of the products as disinfectants is of the utmost importance.

Auch die bei der Reaktion entstehenden Gemische isomerer Alkylderivate sind durch großes Desinfektionsvermögen ausgezeichnet, so daß die Reindarstellung der einzelnen Derivate unnötig ist, wenn das Reaktionsprodukt zur Herstellung bakterizid wirkender Präparate verwendet werden soll. Beispiel i Zu 285 Teilen i-Methyl-2-oxy-5-chlorbenzol vom Schmelzpunkt 48 bis 4g° (vgl. B e i 1-stein, IV. Auflage, Band VI, Seite 359) läßt man bei 8o° ein bei etwa 15' hergestelltes Gemisch aus i5o Teilen Isopropylalkohol und 25o Teilen wasserfreie Schwefelsäure im Laufe von zwei Stunden unter guter Rührung eintropfen. Zur Vervollständigung der Reaktion kann man noch einige Stunden bei der gleichen Temperatur weiterrühren. Dann wird die Flüssigkeit mit 25o Teilen Wasser. versetzt, am Rückflußkühler gekocht und nach dem Erkalten die entstandene Olschicht von der wäßrigen Schwefelsäure abgetrennt. Durch Waschen und Fraktionieren des Öls erhält man ein nahezu geruchloses Isopropyl-5-chlor-2-oxy-i-methylbenzol von sehr starker bakterizider Wirkung.The mixtures of isomeric alkyl derivatives formed in the reaction are also distinguished by their great disinfecting power, so that the preparation of the individual derivatives in pure form is unnecessary if the reaction product is to be used for the production of bactericidal preparations. EXAMPLE i 285 parts of i-methyl-2-oxy-5-chlorobenzene with a melting point of 48 to 4 ° (cf. B ei 1-Stein, IV. Edition, Volume VI, page 359) are allowed to enter at 80 ° at about 1 ° dripped 5 'prepared mixture of i5o parts of isopropyl alcohol and 25o parts of anhydrous sulfuric acid in the course of two hours under vigorous stirring. To complete the reaction, stirring can be continued for a few hours at the same temperature. Then the liquid is mixed with 250 parts of water. added, boiled in the reflux condenser and, after cooling, the resulting oil layer was separated from the aqueous sulfuric acid. Washing and fractionating the oil gives an almost odorless isopropyl-5-chloro-2-oxy-i-methylbenzene with a very strong bactericidal effect.

An Stelle des Isopropylalkohols kann auch ein beliebiger Isopropylester angewandt werden, an Stelle von Schwefelsäure kommen auch andere Kondensationsmittel, wie Aluminiumchlorid, Chlorzink oder Phosphorsäure, in Frage. Beispiel 2 285 Teile 5-Chlor-2-oxy-i-methylbenzol werden in 25o Teilen Dekahydronaphthalin gelöst und nach Zugabe von 14 Teilen wasserfreiem Aluminiumchlorid bei ioo bis i2o° unter io bis 15 Atmosphären Druck mit Propylen behandelt, bis die Propylenaufnahme zum Stillstand kommt. Die Gewichtszunahme beträgt 96 Teile. Das flüssige Rohprodukt wird vom Alnm;n;umclilori:d uröd vom Lösungsmittel befreit und danach mit Alkali behandelt. Das .durch Ansäuern der wäßrigen Lösung in Freiheit gesetzte Produkt wird fraktioniert, wobei 25o Teile eines kernpropylierten 5-Chlor=2-oxy-i-methylbenzols vom Siedepunkt 230 bis 26o° und im übrigen gleichen Eigenschaften wie im vorigen Beispiel erhalten werden.Any isopropyl ester can also be used in place of isopropyl alcohol, and other condensing agents, such as aluminum chloride, zinc chloride or phosphoric acid, can also be used instead of sulfuric acid. Example 2 285 parts of 5-chloro-2-oxy-i-methylbenzene are dissolved in 250 parts of decahydronaphthalene and, after the addition of 14 parts of anhydrous aluminum chloride, treated with propylene at 100 to 120 ° under 10 to 15 atmospheres pressure until propylene uptake ceases . The weight gain is 96 parts. The liquid crude product is freed from the solvent from Alnm; n; umclilori: d uröd and then treated with alkali. The product set free by acidification of the aqueous solution is fractionated, 250 parts of a propylated 5-chloro = 2-oxy-i-methylbenzene having a boiling point of 230 ° to 260 ° and otherwise the same properties as in the previous example.

Beispiel 3 Zu 285 Teilen 5-Chlor-2-oxy-i-methylbenzol lä$t man bei 8o° ein bei 15 bis 2o° hergestelltes Gemisch von 17o Teilen n-Butylalkohol und 25o Teilen wasserfreier Schwefelsäure im Verlauf von zwei Stunden unter gutem Rühren eintropfen. Nach zwölfstündigem Stehen wird :das Gemisch mit 25o Teilen Wasser versetzt, zwei Stunden am Rückflußkühler gekocht und nach dem Erkalten die Ölschicht von der wäßrigen Schwefelsäure entfernt. Das über Chlorcalcium getrocknete Öl wird unter 2o mm Druck destilliert und geht bei 135 bis 1q.0° unter leichter Zersetzung über. Durch Aufnehmen des Destillats mit ioprozentiger Natronlauge, Ausäthern der alkaliunlöslichen Bestandteile und Ansäuren der alkalischen Lösung wird nahezu geruchloses C-Butyl-5-chlor-2-oxy-imethylbenzol erhalten.Example 3 5-chloro-2-oxy-i-methylbenzene is added to 285 parts 8o ° a mixture of 17o parts of n-butyl alcohol and 25o produced at 15 to 20 ° Divide anhydrous sulfuric acid over two hours with thorough stirring a drop. After standing for twelve hours: 250 parts of water are added to the mixture, Boiled for two hours on the reflux condenser and after cooling the oil layer from the aqueous sulfuric acid removed. The oil, dried over calcium chloride, is taken under Distilled 20 mm pressure and goes over at 135 to 1q.0 ° with slight decomposition. By absorbing the distillate with 10% sodium hydroxide solution, etherifying the alkali-insoluble ones Components and acids of the alkaline solution become almost odorless C-butyl-5-chloro-2-oxy-imethylbenzene obtain.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von C-Alkylderivaten im Kern halogensubstituierter Kresole, dadurch gekennzeichnet, daß man kernchlorierte o-Kresole in Gegenwart von Kondensationsmitteln mit solchen Alkoholen, die im Molekül mehr als zwei Kohlenstofatome enthalten, oder den entsprechenden Olefinen oder den Estern der genannten Alkohole behandelt.PATENT CLAIM: Process for the production of C-alkyl derivatives in Core of halogen-substituted cresols, characterized in that core chlorination is carried out o-cresols in the presence of condensing agents with those alcohols that are in the molecule contain more than two carbon atoms, or the corresponding olefins or the Treated esters of the alcohols mentioned.
DEI32592D 1927-11-03 1927-11-03 Process for the preparation of C-alkyl derivatives in the core of halogen-substituted cresols Expired DE495717C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI32592D DE495717C (en) 1927-11-03 1927-11-03 Process for the preparation of C-alkyl derivatives in the core of halogen-substituted cresols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI32592D DE495717C (en) 1927-11-03 1927-11-03 Process for the preparation of C-alkyl derivatives in the core of halogen-substituted cresols

Publications (1)

Publication Number Publication Date
DE495717C true DE495717C (en) 1930-04-10

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DEI32592D Expired DE495717C (en) 1927-11-03 1927-11-03 Process for the preparation of C-alkyl derivatives in the core of halogen-substituted cresols

Country Status (1)

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