DE237946C - - Google Patents

Info

Publication number
DE237946C
DE237946C DENDAT237946D DE237946DA DE237946C DE 237946 C DE237946 C DE 237946C DE NDAT237946 D DENDAT237946 D DE NDAT237946D DE 237946D A DE237946D A DE 237946DA DE 237946 C DE237946 C DE 237946C
Authority
DE
Germany
Prior art keywords
acid
dichloroanthraflavic
sulfonation
condensed
sulfur
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
DENDAT237946D
Other languages
English (en)
Publication of DE237946C publication Critical patent/DE237946C/de
Active legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16Amino-anthraquinones
    • C09B1/20Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups

Landscapes

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

Description

BERLIN. GEDRUCKT IN DER HEICHSDIiUCKEREI.

Claims (1)

  1. Patent-Anspruch :
    45
    Verfahren zur Darstellung brauner Säurefarbstoffe der Anthracenreihe, dadurch gekennzeichnet, daß die durch Sulfieren und darauffolgendes Nitrieren der Dichloranthraflavinsäure gewonnenen Produkte mit aromatischen Aminen unter Zusatz von Schwefel und Schwefelnatrium kondensiert werden.
DENDAT237946D Active DE237946C (de)

Publications (1)

Publication Number Publication Date
DE237946C true DE237946C (de)

Family

ID=497509

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT237946D Active DE237946C (de)

Country Status (1)

Country Link
DE (1) DE237946C (de)

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