GB1145659A - Preparation of aminoanthraquinones - Google Patents

Preparation of aminoanthraquinones

Info

Publication number
GB1145659A
GB1145659A GB3254567A GB3254567A GB1145659A GB 1145659 A GB1145659 A GB 1145659A GB 3254567 A GB3254567 A GB 3254567A GB 3254567 A GB3254567 A GB 3254567A GB 1145659 A GB1145659 A GB 1145659A
Authority
GB
United Kingdom
Prior art keywords
july
reduction
aminoanthraquinones
mol
nitro compound
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
GB3254567A
Inventor
Heinrich Pelster
Clause Konig
Rolf Putter
Harald Gleinig
Helmut Bertsch
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1145659A publication Critical patent/GB1145659A/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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C225/00—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones
    • C07C225/24—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones the carbon skeleton containing carbon atoms of quinone rings
    • C07C225/26—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones the carbon skeleton containing carbon atoms of quinone rings having amino groups bound to carbon atoms of quinone rings or of condensed ring systems containing quinone rings
    • C07C225/32—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones the carbon skeleton containing carbon atoms of quinone rings having amino groups bound to carbon atoms of quinone rings or of condensed ring systems containing quinone rings of condensed quinone ring systems formed by at least three rings
    • C07C225/34—Amino anthraquinones
    • 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
    • C09B1/22—Dyes with unsubstituted amino groups

Landscapes

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

Abstract

1,145,659. Amino anthraquinones. FARBENFABRIKEN BAYER A.G. 14 July, 1967 [19 July, 1966], No. 32545/67. Heading C4P. Amino anthraquinones are obtained by reduction of the corresponding nitroanthraquinones in an aqueous H 2 SO 4 medium having a sulphuric acid concentration of 0-5 to 80% by weight at a pH below 3, using SO 2 in a quantity of 3 to 10 moles per nitro group per mole of nitro compound in the presence of 0.0001 to 0-2 mol. of a catalyst for the reduction per mol. of nitro compound, and at a temperature of from 30‹ to 250‹ C. and isolating the resulting aminoanthraquinone from the reaction mixture. Specified catalysts are HI, metal salts of the elements of Group IV and sub-Groups I, II, IV, V, VI and VIII of the Periodic Table of changeable valency, and I or iodine compounds which are capable of forming HI under the reaction conditions. Examples are given for the production of aminoanthraquinones.
GB3254567A 1966-07-19 1967-07-14 Preparation of aminoanthraquinones Expired GB1145659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0049728 1966-07-19

Publications (1)

Publication Number Publication Date
GB1145659A true GB1145659A (en) 1969-03-19

Family

ID=7103231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3254567A Expired GB1145659A (en) 1966-07-19 1967-07-14 Preparation of aminoanthraquinones

Country Status (3)

Country Link
CH (1) CH487110A (en)
ES (1) ES343126A1 (en)
GB (1) GB1145659A (en)

Also Published As

Publication number Publication date
CH487110A (en) 1970-03-15
DE1543605A1 (en) 1970-02-26
DE1543605B2 (en) 1975-09-11
ES343126A1 (en) 1968-08-16

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