GB957146A - A process for the manufacture of brominated aminoanthraquinones - Google Patents

A process for the manufacture of brominated aminoanthraquinones

Info

Publication number
GB957146A
GB957146A GB4351262A GB4351262A GB957146A GB 957146 A GB957146 A GB 957146A GB 4351262 A GB4351262 A GB 4351262A GB 4351262 A GB4351262 A GB 4351262A GB 957146 A GB957146 A GB 957146A
Authority
GB
United Kingdom
Prior art keywords
brominated
anthraquinone
aminoanthraquinones
manufacture
bromine
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
GB4351262A
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.)
BASF Schweiz AG
Original Assignee
Ciba 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 Ciba AG filed Critical Ciba AG
Publication of GB957146A publication Critical patent/GB957146A/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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups

Landscapes

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

Abstract

Brominated a -alkyl- or -cycloalkylamino-anthraquinone is made by treating an anthraquinone of the formula <FORM:0957146/C3/1> in which R is alkyl, hydroxyalkyl or cycloalkyl and X is hydrogen, alkylamino or cycloalkylamino, with bromine wherein the bromination is conducted in aqueous hydrochloric acid of at least 20% strength. One bromine atom enters the anthraquinone nucleus in the para-position to each amino group, even when excess bromine is used. The products are dye intermediates.
GB4351262A 1962-01-02 1962-11-16 A process for the manufacture of brominated aminoanthraquinones Expired GB957146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7062A CH444885A (en) 1962-01-02 1962-01-02 Process for the preparation of brominated aminoanthraquinones

Publications (1)

Publication Number Publication Date
GB957146A true GB957146A (en) 1964-05-06

Family

ID=4178602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4351262A Expired GB957146A (en) 1962-01-02 1962-11-16 A process for the manufacture of brominated aminoanthraquinones

Country Status (5)

Country Link
BE (1) BE626554A (en)
CH (1) CH444885A (en)
DE (1) DE1176668B (en)
ES (1) ES283842A1 (en)
GB (1) GB957146A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292247A (en) * 1977-04-25 1981-09-29 Sumitomo Chemical Company, Limited Process for producing anthraquinone intermediates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459149A (en) * 1945-06-01 1949-01-18 Eastman Kodak Co Anthraquinone compounds

Also Published As

Publication number Publication date
DE1176668B (en) 1964-08-27
ES283842A1 (en) 1963-07-01
BE626554A (en)
CH444885A (en) 1967-10-15

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