GB2010886A - Process for Preparation of Anthraquinone Dyes - Google Patents

Process for Preparation of Anthraquinone Dyes

Info

Publication number
GB2010886A
GB2010886A GB7845290A GB7845290A GB2010886A GB 2010886 A GB2010886 A GB 2010886A GB 7845290 A GB7845290 A GB 7845290A GB 7845290 A GB7845290 A GB 7845290A GB 2010886 A GB2010886 A GB 2010886A
Authority
GB
United Kingdom
Prior art keywords
isolation
preparation
anthraquinone
anthraquinone dyes
reaction
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.)
Withdrawn
Application number
GB7845290A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB7845290A priority Critical patent/GB2010886A/en
Publication of GB2010886A publication Critical patent/GB2010886A/en
Withdrawn legal-status Critical Current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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
    • C09B1/503—Amino-hydroxy-anthraquinones; Ethers and esters thereof unsubstituted amino-hydroxy anthraquinone

Landscapes

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

Abstract

Navy blue anthraquinone disperse dyes are obtained from anthraquinone and certain mononitro, halogen, alkyl, alkoxy, hydroxy or acyloxy derivatives thereof, by conversion into a dinitro derivative and subsequent reaction, without isolation, with boric acid and elemental sulphur in 5% oleum, followed by isolation of the dyestuff in known manner. The reaction may also include a bromination and/or methylation stage, whereby dyestuffs having a greener shade are obtained.
GB7845290A 1977-12-23 1978-11-20 Process for Preparation of Anthraquinone Dyes Withdrawn GB2010886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7845290A GB2010886A (en) 1977-12-23 1978-11-20 Process for Preparation of Anthraquinone Dyes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5375177 1977-12-23
GB7845290A GB2010886A (en) 1977-12-23 1978-11-20 Process for Preparation of Anthraquinone Dyes

Publications (1)

Publication Number Publication Date
GB2010886A true GB2010886A (en) 1979-07-04

Family

ID=26267332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7845290A Withdrawn GB2010886A (en) 1977-12-23 1978-11-20 Process for Preparation of Anthraquinone Dyes

Country Status (1)

Country Link
GB (1) GB2010886A (en)

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)