GB652818A - Dibenzanthrone dyestuffs - Google Patents

Dibenzanthrone dyestuffs

Info

Publication number
GB652818A
GB652818A GB24114/48A GB2411448A GB652818A GB 652818 A GB652818 A GB 652818A GB 24114/48 A GB24114/48 A GB 24114/48A GB 2411448 A GB2411448 A GB 2411448A GB 652818 A GB652818 A GB 652818A
Authority
GB
United Kingdom
Prior art keywords
nuclear
dibenzanthrone
halogen
alkyl
alkoxy groups
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
GB24114/48A
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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 General Aniline and Film Corp filed Critical General Aniline and Film Corp
Publication of GB652818A publication Critical patent/GB652818A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus
    • C09B3/36—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus by etherification of hydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

Dyes are made by heating Bz.2 : Bz.21-dihydroxydibenzanthrone or a nuclear substitution product thereof containing one or more halogen, alkyl, or alkoxy groups as nuclear substituents, or an alkali metal salt of these compounds, with a 9.9-dihalofluorene or a nuclear substitution product thereof containing one or more halogen, alkyl, or alkoxy groups as nuclear substituents, forming a cyclic ether of the formula: <FORM:0652818/IV (c)/1> The products dye or print cotton bright blue shades, and may be converted to leuco-sulphoric ester salts by usual methods. An example describes the condensation of Bz.2.Bz.21-dihydroxy-dibenzanthrone with 9.9-dichlorofluorene in nitrobenzene in presence of sodium acetate.
GB24114/48A 1947-10-01 1948-09-14 Dibenzanthrone dyestuffs Expired GB652818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US652818XA 1947-10-01 1947-10-01

Publications (1)

Publication Number Publication Date
GB652818A true GB652818A (en) 1951-05-02

Family

ID=22061603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24114/48A Expired GB652818A (en) 1947-10-01 1948-09-14 Dibenzanthrone dyestuffs

Country Status (1)

Country Link
GB (1) GB652818A (en)

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