DE204972C - - Google Patents

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Publication number
DE204972C
DE204972C DENDAT204972D DE204972DA DE204972C DE 204972 C DE204972 C DE 204972C DE NDAT204972 D DENDAT204972 D DE NDAT204972D DE 204972D A DE204972D A DE 204972DA DE 204972 C DE204972 C DE 204972C
Authority
DE
Germany
Prior art keywords
chloroaniline
phenylenediamine
ammonia
protected
modification
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
DENDAT204972D
Other languages
German (de)
Publication of DE204972C publication Critical patent/DE204972C/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
    • C07C309/46—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 the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings

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

Description

*) Früheres Zusatzpatent 202565.*) Former additional patent 202565.

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

Claims (1)

Patent-Anspruch:Patent claim: Abänderung des durch Patent 202564 und dessen Zusatz 202565 geschützten Verfahrens zur Darstellung von p-Phenylendiaminmonosulf osäure, darin bestehend, daß man hier die ρ - Chloranilin-m-sulfosäure (N H2 : S O3 H : Cl = 1 : 3 : 4) mit Ammoniak bei Gegenwart von Kupfersalzen unter Druck erhitzt.Modification of the process for the preparation of p-phenylenediamine monosulfonic acid, which is protected by patent 202564 and its addition 202565, consists in using the ρ - chloroaniline-m-sulfonic acid (NH 2 : S O 3 H: Cl = 1 : 3: 4) heated under pressure with ammonia in the presence of copper salts.
DENDAT204972D Active DE204972C (en)

Publications (1)

Publication Number Publication Date
DE204972C true DE204972C (en)

Family

ID=467252

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT204972D Active DE204972C (en)

Country Status (1)

Country Link
DE (1) DE204972C (en)

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