GB351032A - Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series - Google Patents

Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series

Info

Publication number
GB351032A
GB351032A GB584430A GB584430A GB351032A GB 351032 A GB351032 A GB 351032A GB 584430 A GB584430 A GB 584430A GB 584430 A GB584430 A GB 584430A GB 351032 A GB351032 A GB 351032A
Authority
GB
United Kingdom
Prior art keywords
azine
anthraquinoneazine
followed
manufacture
series
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
GB584430A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB584430A priority Critical patent/GB351032A/en
Publication of GB351032A publication Critical patent/GB351032A/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1 : 2 : 21-anthraquinoneazine derivatives are obtained by treating 1 : 2 : 21 : 11-anthraquinoneazines with formaldehyde or agents supplying the same, followed by halogenating, if desired. According to examples, pure anthraquinone 1 : 2 : 21 : 11-azine obtained by the oxidation of the dihydroazine with manganese dioxide or nitric acid is treated with paraformaldehyde in concentrated sulphuric acid, followed by heating, to obtain the azine, or followed by chlorinating with sulphuryl chloride, and the 3-chloro derivative of the above azine is treated with paraformaldehyde. Specifications 20527/04, [Class 2 (iii), Dyes &c.], 320,397, [Class 2, Acids and salts, Organic &c.], 343,994, and 346,328, are referred to. 3-Chloranthraquinone 1 : 2 : 21 : 11-azine is obtained by condensing 2 : 3-dichlor-1-aminoanthraquinone with 2-brom-1-aminoanthraquinone.
GB584430A 1930-02-21 1930-02-21 Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series Expired GB351032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB584430A GB351032A (en) 1930-02-21 1930-02-21 Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB584430A GB351032A (en) 1930-02-21 1930-02-21 Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series

Publications (1)

Publication Number Publication Date
GB351032A true GB351032A (en) 1931-06-22

Family

ID=9803680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB584430A Expired GB351032A (en) 1930-02-21 1930-02-21 Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series

Country Status (1)

Country Link
GB (1) GB351032A (en)

Similar Documents

Publication Publication Date Title
GB351032A (en) Improvements in the manufacture and production of vat dyestuffs of the 1.2.2.1-anthraquinoneazine series
GB346328A (en) Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1-anthraquinoneazine series
GB358032A (en) Improvements in and relating to the production of esters of anthrahydroquinones
GB348170A (en) Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1-anthraquinoneazine series
GB345623A (en) Improvements in and relating to the manufacture of dyestuffs
GB238523A (en) Manufacture of vat dyestuffs of the anthracene series
US2062443A (en) Improved 4:4'-dimethyl-6:6'-dihalogen thioindigo
GB292897A (en) Improvements in the manufacture and production of dyestuffs of the anthraquinone series
GB484679A (en) Dyestuff intermediates of the anthraquinone series and their manufacture
GB368829A (en) Process for the manufacture of 1:4-diaminoanthraquinone
DE500177C (en) Process for the preparation of halogenated derivatives of N-dihydro-1íñ2íñ2'íñ1'-anthraquinonazine
GB370037A (en) Manufacture of dyestuffs of the anthraquinone series
GB377740A (en) The production of fast dyeings on textile fibres
GB402505A (en) Improvements in the manufacture and production of anthraquinone derivatives
GB405706A (en) Improvements in or relating to the manufacture of dibenzanthrone derivatives
CH103431A (en) Process for the preparation of perylenetetracarboxylic acid.
GB396177A (en) Process for the manufacture of readily soluble basic dyestuffs
GB366472A (en) Improvements in processes for the manufacture and production of vat dyestuffs and the dyestuffs produced thereby
GB335232A (en) Improvements in and relating to the manufacture of dyestuff intermediates
GB238225A (en) Manufacture of new vat dyestuffs
GB343994A (en) Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1-anthraquinoneazine series which are fast to chlorine
GB344777A (en) Improvements in the manufacture and production of vat dyestuffs of the n-dihydro-1.2.2.1.-anthraquinoneazine series
GB487071A (en) Improvements in the manufacture and production of vat dye-stuffs
GB207840A (en) Improvements in and relating to the manufacture of dyestuff intermediates
GB326487A (en) Improvements in organic intermediate compounds and dyestuffs