GB295213A - Improvements in and relating to the production of benzanthrone derivatives - Google Patents

Improvements in and relating to the production of benzanthrone derivatives

Info

Publication number
GB295213A
GB295213A GB305027A GB305027A GB295213A GB 295213 A GB295213 A GB 295213A GB 305027 A GB305027 A GB 305027A GB 305027 A GB305027 A GB 305027A GB 295213 A GB295213 A GB 295213A
Authority
GB
United Kingdom
Prior art keywords
diamino
naphthylphenyl
carboxylic acid
alkoxy
hydroxy
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
GB305027A
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.)
IAN BLOHM ANDERSON
ROBERT FRASER THOMSON
Scottish Dyes Ltd
Original Assignee
IAN BLOHM ANDERSON
ROBERT FRASER THOMSON
Scottish Dyes 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 IAN BLOHM ANDERSON, ROBERT FRASER THOMSON, Scottish Dyes Ltd filed Critical IAN BLOHM ANDERSON
Priority to GB305027A priority Critical patent/GB295213A/en
Publication of GB295213A publication Critical patent/GB295213A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones
    • C09B3/04—Preparation by synthesis of the nucleus

Landscapes

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

Abstract

295,213. Anderson, I. B., Thomson, R. F., Thomas, J., and Scottish Dyes, Ltd. Feb. 2, 1927. Benzanthrone derivatives are prepared by trearing 3-alkoxy or hydroxy-4: 4<1>-diamino 1: 1<1>-naphthylphenyl-2<1>-carboxylic acid with an alkali in aqueous solution. The starting material may also be substituted in the 2, 5, 6, 7, 3', 5<1> or 6<1> position by univalent groups such as alkyl, halogen or alkoxy. According to the examples, a mixture of 6-Bz1-diamino-Bz2-methoxybenezanthrone and 6-aminobenzanthrone-Bx1. Bz2.oxide is formed when 4 : 4<1>-diamino-3-methoxy-1 : 1<1>- naphthylphenyl-2<1>-carboxylic acid hydrochloride is dissolved in caustic soda solution and heated until no more methylamine, is evolved: similar treatment of 4: 4<1>-diamino-3-oxy-1 : 1<1>-naphthylphenyl-2<1>-carboxylic acid gives 6-Bz1-diamino- Bz2-oxybenzanthrone in the cold, and then on heating a mixture of this and 6-aminohenzanthrone-Bz1. Bz2-oxide by Joss of ammonia. 4 : 4<1>-Diamino-3-alkoxy or hydroxy-1: 1<1>-naphthylphenyl-2<1>-carboxylic acid is prepared by coupling #-naphthol with diazotized m-aminobenzoic acid, reducing the resulting azo compound in acid solution, and if necessary alkylating the product.
GB305027A 1927-02-02 1927-02-02 Improvements in and relating to the production of benzanthrone derivatives Expired GB295213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB305027A GB295213A (en) 1927-02-02 1927-02-02 Improvements in and relating to the production of benzanthrone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB305027A GB295213A (en) 1927-02-02 1927-02-02 Improvements in and relating to the production of benzanthrone derivatives

Publications (1)

Publication Number Publication Date
GB295213A true GB295213A (en) 1928-08-02

Family

ID=9751004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB305027A Expired GB295213A (en) 1927-02-02 1927-02-02 Improvements in and relating to the production of benzanthrone derivatives

Country Status (1)

Country Link
GB (1) GB295213A (en)

Similar Documents

Publication Publication Date Title
GB394026A (en) Process for the manufacture of bis-(halogenhydroxyaryl)-oxides
GB295213A (en) Improvements in and relating to the production of benzanthrone derivatives
GB336982A (en) Improvements in and relating to the production of dyestuff intermediates
GB488274A (en) Improvements in insoluble coloured products or pigments and process for manufacturing the same
GB699112A (en) Improvements relating to materials for photographic diazotype printing
GB269582A (en) Manufacture of diazosulphamic acids of the cyclic series
US1818049A (en) New azodyestuff
GB430236A (en) Compositions for the production of azo dyestuffs
GB461998A (en) Process for the manufacture of new anthraquinone derivatives
GB486100A (en) Improvements in or relating to the preparation of azo compounds from 4:6-diamino-alpha-picolines
GB420825A (en) New dyestuff intermediates
GB266561A (en) Azo dyes
GB153055A (en) Improvements in the manufacture of anthraquinone derivatives
GB728572A (en) Vat dyes of the pyrazolanthronyl series and process of preparing the same
GB439372A (en) The manufacture of azodyestuffs
GB429430A (en) The manufacture of new intermediates and azo dyes therefrom
GB365759A (en) Preparation of new stable tetrazomonoazo compounds
GB248946A (en) Manufacture of new azo-dyestuffs and intermediate products therefor
GB273656A (en) Improvements in the manufacture and production of vat dyestuffs
GB307727A (en) The manufacture of 6-alkoxy-8-amino-quinolines
GB731065A (en) Manufacture of antidiazotates of aromatic amines containing basic substituents
GB212029A (en) Manufacture of new azo dyestuffs
GB381602A (en) Substituted naphthalene derivatives
GB289544A (en) Improvements in and relating to the production of dyestuff intermediates
GB512618A (en) Process for the preparation of disazo dyestuffs