GB901059A - Improvements in the production of 1,4-diaminoanthraquinone-2,3-dinitrile - Google Patents

Improvements in the production of 1,4-diaminoanthraquinone-2,3-dinitrile

Info

Publication number
GB901059A
GB901059A GB2195460A GB2195460A GB901059A GB 901059 A GB901059 A GB 901059A GB 2195460 A GB2195460 A GB 2195460A GB 2195460 A GB2195460 A GB 2195460A GB 901059 A GB901059 A GB 901059A
Authority
GB
United Kingdom
Prior art keywords
sodium
acid
hydrogen peroxide
reaction mixture
saturated
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
GB2195460A
Inventor
Willy Braun
Manfred Ruske
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 SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB901059A publication Critical patent/GB901059A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/58—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and singly-bound nitrogen atoms, not being further bound to other hetero atoms, bound to the carbon skeleton
    • 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)

Abstract

1:4-Diaminoanthraquinone-2:3-dinitrile is made by reacting 1 mole of 1:4-diamino-anthraquinone-2-sulphonic acid or a salt thereof with at least 2 mols of a water-soluble salt of hydrocyanic acid in aqueous solution at temperatures between 65 DEG and 100 DEG C., there being present throughout the course of the reaction an amount of an oxidising agent which is just sufficient to maintain in the reaction mixture a redox potential of +180 mV to +550 mV with reference to a platinum/thallium amalgam/thallium chloride electrode cell [Hg/TI (40%)/TlCl saturated, KCl saturated], a temperature of 90 DEG to 95 DEG C. and a pH of 9 to 11.5, and thus to prevent a change of shade of colour of the reaction mixture from reddish-blue to dark red. Acid-binding agents may be present. Oxidising agents specified are hydrogen peroxide, manganese dioxide, ammonium persulphate, sodium percarbonate, sodium perborate, sodium perpyrophosphate, iodine, peracetic acid, the adduct of urea and hydrogen peroxide, sodium m-nitrobenzene sulphonate or atmospheric oxygen in the optional presence of ammonium molybdate or vanadate or copper acetate. Examples are given. Specification 359,850 is referred to.
GB2195460A 1959-06-25 1960-06-23 Improvements in the production of 1,4-diaminoanthraquinone-2,3-dinitrile Expired GB901059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB53744A DE1108704B (en) 1959-06-25 1959-06-25 Process for the preparation of 1, 4-diaminoanthraquinone-2, 3-dinitrile

Publications (1)

Publication Number Publication Date
GB901059A true GB901059A (en) 1962-07-11

Family

ID=6970366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2195460A Expired GB901059A (en) 1959-06-25 1960-06-23 Improvements in the production of 1,4-diaminoanthraquinone-2,3-dinitrile

Country Status (4)

Country Link
BE (1) BE592155A (en)
CH (1) CH385246A (en)
DE (1) DE1108704B (en)
GB (1) GB901059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023645A1 (en) * 1979-08-07 1981-02-11 Bayer Ag Process for the preparation of 1,4-diamino-2,3-dicyanoanthraquinones

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299771A (en) 1979-10-26 1981-11-10 Sumitomo Chemical Company, Limited Process for producing anthraquinone compounds
DE3003656A1 (en) * 1980-02-01 1981-08-06 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 1,4-DIAMO-2,3-DICYANO-ANTHRACHINONE
US4519947A (en) * 1982-10-04 1985-05-28 Sumitomo Chemical Co., Ltd. Process for producing anthraquinone compounds
CH660877A5 (en) * 1984-10-26 1987-05-29 Ciba Geigy Ag METHOD FOR PRODUCING 1,4-DIAMINO-2,3-DICYANOANTHRACHINONE.
JPH0721114B2 (en) * 1985-12-10 1995-03-08 住友化学工業株式会社 Method for producing anthraquinone compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023645A1 (en) * 1979-08-07 1981-02-11 Bayer Ag Process for the preparation of 1,4-diamino-2,3-dicyanoanthraquinones

Also Published As

Publication number Publication date
CH385246A (en) 1964-12-15
DE1108704B (en) 1961-06-15
BE592155A (en)

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