AT50373B - Process for the preparation of haloindoxylic acids, their esters and haloindoxyls and the corresponding haloindigo dyes. - Google Patents

Process for the preparation of haloindoxylic acids, their esters and haloindoxyls and the corresponding haloindigo dyes.

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Publication number
AT50373B
AT50373B AT50373DA AT50373B AT 50373 B AT50373 B AT 50373B AT 50373D A AT50373D A AT 50373DA AT 50373 B AT50373 B AT 50373B
Authority
AT
Austria
Prior art keywords
dyes
esters
preparation
haloindoxyls
haloindoxylic
Prior art date
Application number
Other languages
German (de)
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of AT50373B publication Critical patent/AT50373B/en

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Description

  

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Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von IIalogenindoxysäuren, dere Estern sowie von Halogenindoxylon und den entsprechenden Halogenindigofarbstoffen, dadurch gekennzeichnet, dass man die Di-, Tri-und Tetrahalogenderivate der neutralen oder sauren Phenylglyzin- o-karbonsäureester mit Natriumalkohlat, Natrium oder anderen Natrium enthaltenden, eine Abspltung von Alkohol bowirkenden Kondensationsmitteln behandelt und die entstehenden Hatogenindoxyldorivate gegebenenfalls in die zugehörigen Indigofarbstoffe überführt. PATENT CLAIM: Process for the preparation of IIalogenindoxyacids, their esters and halogenindoxylon and the corresponding halogenindigo dyes, characterized in that the di-, tri- and tetrahalogen derivatives of the neutral or acidic phenylglycine o-carboxylic acid esters with sodium alcoholate, sodium or other sodium containing, a separation of Treated alcohol-acting condensation agents and the resulting halogenindoxyldorivate optionally converted into the associated indigo dyes.
AT50373D 1908-12-12 1909-05-24 Process for the preparation of haloindoxylic acids, their esters and haloindoxyls and the corresponding haloindigo dyes. AT50373B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE50373X 1908-12-12

Publications (1)

Publication Number Publication Date
AT50373B true AT50373B (en) 1911-10-25

Family

ID=5626636

Family Applications (1)

Application Number Title Priority Date Filing Date
AT50373D AT50373B (en) 1908-12-12 1909-05-24 Process for the preparation of haloindoxylic acids, their esters and haloindoxyls and the corresponding haloindigo dyes.

Country Status (1)

Country Link
AT (1) AT50373B (en)

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