GB1357955A - Process for the manufacture of anthraquinone compounds - Google Patents

Process for the manufacture of anthraquinone compounds

Info

Publication number
GB1357955A
GB1357955A GB1771471A GB1771471A GB1357955A GB 1357955 A GB1357955 A GB 1357955A GB 1771471 A GB1771471 A GB 1771471A GB 1771471 A GB1771471 A GB 1771471A GB 1357955 A GB1357955 A GB 1357955A
Authority
GB
United Kingdom
Prior art keywords
quinizarin
manufacture
anthraquinone compounds
dichloroquinizarin
boro
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
GB1771471A
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 GB1771471A priority Critical patent/GB1357955A/en
Publication of GB1357955A publication Critical patent/GB1357955A/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
    • C09B1/02—Hydroxy-anthraquinones; Ethers or esters thereof
    • C09B1/06—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/10—Dyes containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Abstract

1357955 Dichloroquinizarin; quinizarin di(borocarboxylates) IMPERIAL CHEMICAL INDUSTRIES Ltd 10 May 1972 [28 May 1971] 17714/71 Headings C2C and C2B 5,8-Dichloroquinizarin is prepared by reacting a quinizarin di(boro C 1-4 alkyl carboxylate) with chlorine in oleum and subsequently hydrolysing off the boron-containing groups. Quinizarin di(boro C 1-4 alkyl carboxylates) are prepared by adding boric acid to the appropriate acid anhydride and then adding quinizarin.
GB1771471A 1971-05-28 1971-05-28 Process for the manufacture of anthraquinone compounds Expired GB1357955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1771471A GB1357955A (en) 1971-05-28 1971-05-28 Process for the manufacture of anthraquinone compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1771471A GB1357955A (en) 1971-05-28 1971-05-28 Process for the manufacture of anthraquinone compounds

Publications (1)

Publication Number Publication Date
GB1357955A true GB1357955A (en) 1974-06-26

Family

ID=10099929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1771471A Expired GB1357955A (en) 1971-05-28 1971-05-28 Process for the manufacture of anthraquinone compounds

Country Status (1)

Country Link
GB (1) GB1357955A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038777A1 (en) * 1980-04-22 1981-10-28 Ciba-Geigy Ag Process for the preparation of OH or chloro derivatives of quinizarine bisubstituted in position 5 and 8

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038777A1 (en) * 1980-04-22 1981-10-28 Ciba-Geigy Ag Process for the preparation of OH or chloro derivatives of quinizarine bisubstituted in position 5 and 8

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees