DE251235C - - Google Patents

Info

Publication number
DE251235C
DE251235C DENDAT251235D DE251235DA DE251235C DE 251235 C DE251235 C DE 251235C DE NDAT251235 D DENDAT251235 D DE NDAT251235D DE 251235D A DE251235D A DE 251235DA DE 251235 C DE251235 C DE 251235C
Authority
DE
Germany
Prior art keywords
products
oxyanthraquinones
condensed
sulfur
derivatives
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
DENDAT251235D
Other languages
German (de)
Publication of DE251235C publication Critical patent/DE251235C/de
Active legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B49/00—Sulfur dyes
    • C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
    • C09B49/124—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from polycarbocyclic compounds

Landscapes

  • 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-Anspruch :Patent claim: Verfahren zur Herstellung von Kondensationsprodukten der Anthrachinonreihe, dadurch gekennzeichnet, daß man in weiterer Ausbildung des Verfahrens des Patentes 251234 Oxyanthrachinone und deren Derivate mit Schwefel im Beisein von starker Schwefelsäure kondensiert und gegebenenfalls die so erhaltenen Produkte nachträglich oxydiert.Process for the production of condensation products of the anthraquinone series, characterized in that in a further development of the method of the patent 251234 Oxyanthraquinones and their derivatives with sulfur in the presence of strong sulfuric acid is condensed and, if necessary, the products thus obtained are subsequently oxidized.
DENDAT251235D Active DE251235C (en)

Publications (1)

Publication Number Publication Date
DE251235C true DE251235C (en)

Family

ID=509688

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT251235D Active DE251235C (en)

Country Status (1)

Country Link
DE (1) DE251235C (en)

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