GB394312A - New anthraquinone dyestuffs and the application thereof - Google Patents

New anthraquinone dyestuffs and the application thereof

Info

Publication number
GB394312A
GB394312A GB3144031A GB3144031A GB394312A GB 394312 A GB394312 A GB 394312A GB 3144031 A GB3144031 A GB 3144031A GB 3144031 A GB3144031 A GB 3144031A GB 394312 A GB394312 A GB 394312A
Authority
GB
United Kingdom
Prior art keywords
amino
dihydrobenz
keto
thiazine
acid
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
GB3144031A
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
Priority to FR745527D priority Critical patent/FR745527A/fr
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3144031A priority patent/GB394312A/en
Priority to DEI45752D priority patent/DE596398C/en
Publication of GB394312A publication Critical patent/GB394312A/en
Priority to US720593A priority patent/US2105011A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezoelectric transducers; Electrostrictive transducers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16Amino-anthraquinones
    • C09B1/20Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Coloring (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Anthraquinone dyes are prepared by reacting an amino-3-keto-2,3-dihydrobenz-1,4-thiazine with a 1-hydroxyanthraquinone or a leucoderivative thereof, oxidizing, if necessary, and hydrolysing the product to give the substituted thioglycollic acid of which it is the lactam. The 1-hydroxyanthraquinones may carry substituents and may comprise those specified in Specifications 4961/95 and 7538/96, [both in Class 2, Acids and salts, Organic &c.]; they are condensed with the amino-thiazine derivatives by the methods disclosed in these Specifications, the presence of pyridine or dimethylaniline as a diluent being mentioned. In examples (1) leuco-quinizarin is condensed with 7-amino-3-keto-2,3-dihydrobenz-1,4-thiazine in pyridine and in presence of boric acid; saponification by means of aqueous caustic soda yields the thioglycollic acid which dyes wool green shades; the latter on treatment with hot dilute hydrochloric acid are "lactamized" to dyeings fast to potting; (2) the 7-amino derivative may be replaced by the 6-amino or 8-amino-6-methyl-derivatives of 3-keto-2,3-dihydrobenz-1,4-thiazines to give similar products dyeing green shades which may be "lactamized" on the fibre and remained fast to potting; (3) leuco-1,4,5-trihydroxyanthraquinone is similarly condensed with 7-amino-3-keto-2,3-dihydrobenz-1,4-thiazine; the dyeing shade after lactamization is green. The above 6- and 7-aminothiazine derivatives are prepared by first hydrolysing (alkaline) the 5- or 6-aminobenzthiazole according to the process of Specification 355,808, treating the resulting mercaptophenylenediamines with chloracetic acid and ring-closing by means of hot dilute mineral acid. 8-amino-6-methyl-3-keto-2,3-dihydrobenz-1,4-thiazine is prepared by treating 4-chloro-3,5-dinitrotoluene with alcoholic sodium hydrosulphide to give the mercaptan which is then condensed with sodium chloracetate and reduced with zinc and acetic acid.
GB3144031A 1931-11-13 1931-11-13 New anthraquinone dyestuffs and the application thereof Expired GB394312A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR745527D FR745527A (en) 1931-11-13
GB3144031A GB394312A (en) 1931-11-13 1931-11-13 New anthraquinone dyestuffs and the application thereof
DEI45752D DE596398C (en) 1931-11-13 1932-11-13 Process for the preparation of anthraquinone dyes
US720593A US2105011A (en) 1931-11-13 1934-04-14 Piezo-electric apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3144031A GB394312A (en) 1931-11-13 1931-11-13 New anthraquinone dyestuffs and the application thereof

Publications (1)

Publication Number Publication Date
GB394312A true GB394312A (en) 1933-06-13

Family

ID=10323119

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3144031A Expired GB394312A (en) 1931-11-13 1931-11-13 New anthraquinone dyestuffs and the application thereof

Country Status (3)

Country Link
DE (1) DE596398C (en)
FR (1) FR745527A (en)
GB (1) GB394312A (en)

Also Published As

Publication number Publication date
DE596398C (en) 1934-05-03
FR745527A (en) 1933-05-12

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