DE478332C - Process for the preparation of aromatic sulphonic acids - Google Patents

Process for the preparation of aromatic sulphonic acids

Info

Publication number
DE478332C
DE478332C DEI27837D DEI0027837D DE478332C DE 478332 C DE478332 C DE 478332C DE I27837 D DEI27837 D DE I27837D DE I0027837 D DEI0027837 D DE I0027837D DE 478332 C DE478332 C DE 478332C
Authority
DE
Germany
Prior art keywords
preparation
parts
sulphonic acids
aromatic sulphonic
ethyl alcohol
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
DEI27837D
Other languages
German (de)
Inventor
Dr Karl Dachlauer
Dr Emil Thiel
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 DEI27837D priority Critical patent/DE478332C/en
Application granted granted Critical
Publication of DE478332C publication Critical patent/DE478332C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung von aromatischen Sulfosäuren In der Patentschrift 476 9o6 ist die Herstellung von substituierten aromatischen Sulfosäuren beschrieben. Hiernach gelingt es, Methyl- bzw. Äthylalkohol mit aromatischen Kohlenwasserstoffen zur Kondensation zu bringen, wenn man auf diese oder deren Gemische Chlorsulfonsäure oder Oleum oder ein Gemisch beider bei erhöhter Temperatur einwirken läßt.Process for the preparation of aromatic sulfonic acids In the patent 476 906 describes the preparation of substituted aromatic sulfonic acids. Then it is possible to combine methyl or ethyl alcohol with aromatic hydrocarbons to cause condensation if chlorosulfonic acid is used on these or their mixtures or oleum or a mixture of both is allowed to act at an elevated temperature.

Es hat sich gezeigt, daß man auch dann zu Produkten mit gleichen Eigenschaften gelangt, wenn man auf aromatische Kohlenwasserstoffe Methyl- bzw. Äthylalkohol und Oleum bzw. Chlorsulfonsäure gleichzeitig, getrennt oder als Gemisch einwirken läßt.It has been shown that even then products with the same properties can be found If you get on aromatic hydrocarbons methyl or ethyl alcohol and Let oleum or chlorosulfonic acid act simultaneously, separately or as a mixture.

Beispiele i. Auf 128 Teile geschmolzenes Naphthalin läßt man bei 8o bis ioo° ein Gemisch aus 46 Teilen Äthylalkohol und 22o Teilen 2oprozentigem Oleum einwirken und rührt bis zur völligen Wasserlöslichkeit bei iio bis i 3o° nach.Examples i. Naphthalene melted in 128 parts is left at 8o to 100 ° a mixture of 46 parts of ethyl alcohol and 220 parts of 2% oleum act and stir until complete water solubility at iio to i 30 °.

2. Zu 128 Teilen geschmolzenem Naphthalin läßt man bei 8o bis ioo° gleichzeitig, aber getrennt voneinander, 5o Teile Athylalkohol und 22o Teile 2oprozentiges Oleum zulaufen und rührt bis zur völligen Wasserlöslichkeit bei i--o bis i3o° noch einige Stunden nach.2. To 128 parts of molten naphthalene one leaves at 80 to 100 ° at the same time, but separately from one another, 50 parts of ethyl alcohol and 220 parts of 2% Run in oleum and stir until it is completely water-soluble at i - o to i3o ° a few hours after.

Die nach Beispiel i und 2 gewonnenen Kondensationsprodukte stellen in konzentrierter Form dunkel gefärbte, viskose Massen dar, deren wäßrige Lösungen gelblich gefärbt sind und beachtenswertes Emulsions- und Schaumvermögen besitzen.The condensation products obtained according to Examples i and 2 represent in concentrated form, dark-colored, viscous masses, their aqueous solutions are yellowish in color and have remarkable emulsifying and foaming properties.

3. Zu 132 Teilen Tetrahydronaphthalin läßt man bei 6o bis 70° gleichzeitig, aber getrennt voneinander, 5o Teile Äthylalkohol und 25o Teile Chlorsulfonsäure zulaufen. Nach beendetem Einlauf rührt man noch einige Stunden bei i2o bis i3o° bis zur völligen Wasserlöslichkeit nach. Durch Neutralisation mit Natronlauge erhält man das Natriumsalz dieses Kondensationsproduktes, welches nach dem Trocknen ein gelbliches, bröckliches, seifenähnliches Produkt darstellt, sich leicht in Wasser löst und ein erhebliches Emulsions-und Waschvermögen besitzt.3. To 132 parts of tetrahydronaphthalene is allowed at 6o to 70 ° at the same time, but separately, 50 parts of ethyl alcohol and 25o parts of chlorosulfonic acid run up. After the run-in has ended, the mixture is stirred for a few hours at between 120 and 130 ° until it is completely soluble in water. Obtained by neutralization with sodium hydroxide solution one the sodium salt of this condensation product, which after drying a yellowish, crumbly, soap-like product, easily dissolves in water dissolves and has considerable emulsifying and washing power.

Claims (1)

PATGNTANSPRUCI3: Abänderung des Verfahrens des Hauptpatents 476 9o6 zur Darstellung von aromatischen Sulfosäuren; dadurch gekennzeichnet, daß man hier auf aromatische Kohlenwasserstoffe Methyl- bzw. Äthylalkohol und Chlorsulfonsäure bzw. Oleum gleichzeitig, getrennt oder als Gemisch einwirken läßt.PATGNTANSPRUCI3: Modification of the procedure of the main patent 476 9o6 for the preparation of aromatic sulfonic acids; characterized by being here on aromatic hydrocarbons methyl or ethyl alcohol and chlorosulfonic acid or oleum can act simultaneously, separately or as a mixture.
DEI27837D 1926-04-08 1926-04-08 Process for the preparation of aromatic sulphonic acids Expired DE478332C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI27837D DE478332C (en) 1926-04-08 1926-04-08 Process for the preparation of aromatic sulphonic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI27837D DE478332C (en) 1926-04-08 1926-04-08 Process for the preparation of aromatic sulphonic acids

Publications (1)

Publication Number Publication Date
DE478332C true DE478332C (en) 1929-06-21

Family

ID=7186879

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI27837D Expired DE478332C (en) 1926-04-08 1926-04-08 Process for the preparation of aromatic sulphonic acids

Country Status (1)

Country Link
DE (1) DE478332C (en)

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