GB348159A - Improvements in and relating to the production and use of benzanthrone derivatives - Google Patents

Improvements in and relating to the production and use of benzanthrone derivatives

Info

Publication number
GB348159A
GB348159A GB3313129A GB3313129A GB348159A GB 348159 A GB348159 A GB 348159A GB 3313129 A GB3313129 A GB 3313129A GB 3313129 A GB3313129 A GB 3313129A GB 348159 A GB348159 A GB 348159A
Authority
GB
United Kingdom
Prior art keywords
hydroxylamine
dibenzanthronyl
treated
dyes
fused
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
GB3313129A
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.)
Scottish Dyes Ltd
Original Assignee
Scottish Dyes 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 Scottish Dyes Ltd filed Critical Scottish Dyes Ltd
Priority to GB3313129A priority Critical patent/GB348159A/en
Publication of GB348159A publication Critical patent/GB348159A/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
    • C09B3/02—Benzathrones
    • C09B3/12—Dibenzanthronyls

Landscapes

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

Abstract

Benzanthrone derivatives.-Vat dyes are made by treating dibenzanthronyls or their substitution products with hydroxylamine or substances yielding hydroxylamine, followed by alkali fusion. In examples, (1) Bzl : Bzl1-dibenzanthronyl is sulphonated by treatment with oleum, the sulphonation mixture is treated with potassium hydroxylamine disulphonate or hydroxylamine hydrochloride in the presence of ferrous sulphate, and the product fused with caustic potash; the resulting dyestuff dyes in grey shades, (2) 2 : 21-dibenzanthronyl is similarly sulphonated, treated with potassium hydroxylamine disulphonate and fused with caustic potash; the product dyes in greenishgrey shades, (3) Bzl : Bzl1-dibenzanthronyl is treated with potassium hydroxylamine disulphonate in sulphuric acid with addition of ferrous sulphate, and the product fused with caustic potash; the resulting dyestuff dyes in blue-grey shades, (4) chlorinated Bzl : Bzl1-dibenzanthronyl (containing 16,7 per cent chlorine) is sulphonated with oleum, treated with hydroxylamine hydrochloride in the sulphonation mixture, and the product fused with caustic potash; the resulting dyestuff dyes in greenish-grey shades, and (5) chlorinated 2 : 21-dibenzanthronyl (16 per cent chlorine) is treated with potassium hydroxylamine disulphonate in sulphuric acid and fused with caustic potash; the product dyes in grey shades. The products may be alkylated as described in Specification 348,160.
GB3313129A 1929-10-31 1929-10-31 Improvements in and relating to the production and use of benzanthrone derivatives Expired GB348159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3313129A GB348159A (en) 1929-10-31 1929-10-31 Improvements in and relating to the production and use of benzanthrone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3313129A GB348159A (en) 1929-10-31 1929-10-31 Improvements in and relating to the production and use of benzanthrone derivatives

Publications (1)

Publication Number Publication Date
GB348159A true GB348159A (en) 1931-04-30

Family

ID=10348946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3313129A Expired GB348159A (en) 1929-10-31 1929-10-31 Improvements in and relating to the production and use of benzanthrone derivatives

Country Status (1)

Country Link
GB (1) GB348159A (en)

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