GB1532812A - Process for the manufacture of anthraquinone compounds - Google Patents

Process for the manufacture of anthraquinone compounds

Info

Publication number
GB1532812A
GB1532812A GB1705875A GB1705875A GB1532812A GB 1532812 A GB1532812 A GB 1532812A GB 1705875 A GB1705875 A GB 1705875A GB 1705875 A GB1705875 A GB 1705875A GB 1532812 A GB1532812 A GB 1532812A
Authority
GB
United Kingdom
Prior art keywords
aminoanthraquinones
boric acid
moles
april
optionally substituted
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
GB1705875A
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 GB1705875A priority Critical patent/GB1532812A/en
Publication of GB1532812A publication Critical patent/GB1532812A/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
    • C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
    • C09B1/51—N-substituted amino-hydroxy anthraquinone
    • 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

1532812 Preparing hydroxy aminoanthraquinones IMPERIAL CHEMICAL INDUSTRIES Ltd 1 April 1976 [24 April 1975] 17058/75 Heading C4P Hydroxy aminoanthraquinones having the general formula wherein R is H or an optionally substituted alkyl, cycloalkyl or aryl radical are prepared by reacting 1,4,5-trihydroxy-8-aminoanthraquinones with at least 2 moles of a compound R-NH 2 per mole of the anthraquinone compound in presence of boric acid or a boric acid ester B(OX) 3 where X is C 1 -C 4 alkyl or optionally substituted phenyl and a phenol, the reaction taking place at 50‹ C. to the boiling point of the reaction mixture. Preferably 4-10 moles of RNH 2 or mixtures thereof are used and the boric acid or ester is used in amounts of 45-130% by weight of the anthraquinone starting material. The phenols include cresols and xylenols.
GB1705875A 1976-04-01 1976-04-01 Process for the manufacture of anthraquinone compounds Expired GB1532812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1705875A GB1532812A (en) 1976-04-01 1976-04-01 Process for the manufacture of anthraquinone compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1705875A GB1532812A (en) 1976-04-01 1976-04-01 Process for the manufacture of anthraquinone compounds

Publications (1)

Publication Number Publication Date
GB1532812A true GB1532812A (en) 1978-11-22

Family

ID=10088504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1705875A Expired GB1532812A (en) 1976-04-01 1976-04-01 Process for the manufacture of anthraquinone compounds

Country Status (1)

Country Link
GB (1) GB1532812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130596A (en) * 1982-11-12 1984-06-06 Ivaschenko Alexandr V Anthraquinone derivatives, method for preparing same, liquid-crystal material for electrooptical devices and electrooptical device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130596A (en) * 1982-11-12 1984-06-06 Ivaschenko Alexandr V Anthraquinone derivatives, method for preparing same, liquid-crystal material for electrooptical devices and electrooptical device

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee