DE258299C - - Google Patents

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Publication number
DE258299C
DE258299C DENDAT258299D DE258299DA DE258299C DE 258299 C DE258299 C DE 258299C DE NDAT258299 D DENDAT258299 D DE NDAT258299D DE 258299D A DE258299D A DE 258299DA DE 258299 C DE258299 C DE 258299C
Authority
DE
Germany
Prior art keywords
sulfonic acid
oxynaphthalene
chloro
aromatic sulfonic
arylsulfamino
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.)
Active
Application number
DENDAT258299D
Other languages
German (de)
Publication of DE258299C publication Critical patent/DE258299C/de
Active 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
    • C07C309/01—Sulfonic acids
    • C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
    • C07C309/49—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms
    • C07C309/50—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms having at least one of the sulfo groups bound to a carbon atom of a six-membered aromatic ring being part of a condensed ring system

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

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-AnSPRυCH :Patent CLAIM: Verfahren zur Darstellung der 1-Chlor-2-amino-5-oxynaphtalin-7-sulfosäure, darin bestehend, daß man die aus 2-Aminonaphtalin-5 ■ 7-disulfosäure und aromatischen Sulfosäurechloriden erhältlichen N-Arylsulfoderivate mit chlorierenden Mitteln behandelt, die in 5-Stellung befindliche Sulfogruppe verschmilzt und aus der so erhaltenen i-Chlor-2-arylsulfamino-5-oxynaphtalin-7-sulfosäure den aromatischen Sulfosäurerest abspaltet.Process for the preparation of 1-chloro-2-amino-5-oxynaphthalene-7-sulfonic acid, consisting in treating the N- aryl sulfo derivatives obtainable from 2-aminonaphthalene-5 ■ 7-disulfonic acid and aromatic sulfonic acid chlorides with chlorinating agents, which are described in The sulfo group located in the 5-position fuses and splits off the aromatic sulfonic acid residue from the i-chloro-2-arylsulfamino-5-oxynaphthalene-7-sulfonic acid thus obtained.
DENDAT258299D Active DE258299C (en)

Publications (1)

Publication Number Publication Date
DE258299C true DE258299C (en)

Family

ID=516140

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT258299D Active DE258299C (en)

Country Status (1)

Country Link
DE (1) DE258299C (en)

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