DE67017C - Process for the preparation of aiou-diamidonaphthalene / S2-moriosulfonic acid - Google Patents

Process for the preparation of aiou-diamidonaphthalene / S2-moriosulfonic acid

Info

Publication number
DE67017C
DE67017C DENDAT67017D DE67017DA DE67017C DE 67017 C DE67017 C DE 67017C DE NDAT67017 D DENDAT67017 D DE NDAT67017D DE 67017D A DE67017D A DE 67017DA DE 67017 C DE67017 C DE 67017C
Authority
DE
Germany
Prior art keywords
acid
diamidonaphthalene
preparation
moriosulfonic
aiou
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 - Lifetime
Application number
DENDAT67017D
Other languages
German (de)
Original Assignee
leopold cassella & co. in Frankfurt a. M
Publication of DE67017C publication Critical patent/DE67017C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C07C309/47—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 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.

Claims (1)

Patent-AnspRuCH:Patent claim: Verfahren zur Darstellung von Ci1 ct4-Diamidonaphtalin-ß2-sulfosäure, darin bestehend, dafs ß-Naphtalinmonosulfosäure in Lösung von concentrirter Schwefelsäure bei einer 500 C. nicht überschreitenden Temperatur mit mindestens zwei Aequivalenten Salpetersäure behandelt wird, die entstandene Dinitrosäure in Form ihres Natron- oder Kalisalzes abgeschieden wird und dieses durch Behandlung mit Reductionsmitteln in die Diamidonaphtalin-ß-sulfosäure übergeführt wird.A process for the preparation of C 1 ct ß-4 -Diamidonaphtalin -sulfosäure 2, consisting, that ß-Naphtalinmonosulfosäure in solution of concentrated sulfuric acid at 50 0 C. not exceeding temperature with at least two equivalents of nitric acid is treated, the resultant in the form Dinitrosäure Their sodium or potassium salt is deposited and this is converted into diamidonaphthalene-ß-sulfonic acid by treatment with reducing agents.
DENDAT67017D Process for the preparation of aiou-diamidonaphthalene / S2-moriosulfonic acid Expired - Lifetime DE67017C (en)

Publications (1)

Publication Number Publication Date
DE67017C true DE67017C (en)

Family

ID=340684

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT67017D Expired - Lifetime DE67017C (en) Process for the preparation of aiou-diamidonaphthalene / S2-moriosulfonic acid

Country Status (1)

Country Link
DE (1) DE67017C (en)

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