GB467650A - Manufacture of dyestuffs of the anthracene series - Google Patents

Manufacture of dyestuffs of the anthracene series

Info

Publication number
GB467650A
GB467650A GB3570535A GB3570535A GB467650A GB 467650 A GB467650 A GB 467650A GB 3570535 A GB3570535 A GB 3570535A GB 3570535 A GB3570535 A GB 3570535A GB 467650 A GB467650 A GB 467650A
Authority
GB
United Kingdom
Prior art keywords
dyestuffs
isatin
manufacture
alkali
anthracene series
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
Application number
GB3570535A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3570535A priority Critical patent/GB467650A/en
Publication of GB467650A publication Critical patent/GB467650A/en
Expired 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
    • C09B6/00—Anthracene dyes not provided for above

Landscapes

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

Abstract

Dyestuffs are obtained by condensing aceanthrenone with an isatin in the presence of an alkali and heating the product with caustic alkali. Chlorisatins, bromisatins, halogen-alkylisatins and isatins containing instead of the benzene ring a polynuclear isocyclic ring system may be used in the condensation, isatin, 6-methylisatin, and 5 : 7-dichlorisatin being employed in the examples. Alcoholic caustic potash is used for the final heat treatment. The dyestuffs dye cotton and viscose artificial silk green shades.
GB3570535A 1935-12-24 1935-12-24 Manufacture of dyestuffs of the anthracene series Expired GB467650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3570535A GB467650A (en) 1935-12-24 1935-12-24 Manufacture of dyestuffs of the anthracene series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3570535A GB467650A (en) 1935-12-24 1935-12-24 Manufacture of dyestuffs of the anthracene series

Publications (1)

Publication Number Publication Date
GB467650A true GB467650A (en) 1937-06-21

Family

ID=10380657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3570535A Expired GB467650A (en) 1935-12-24 1935-12-24 Manufacture of dyestuffs of the anthracene series

Country Status (1)

Country Link
GB (1) GB467650A (en)

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