GB309454A - - Google Patents

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Publication number
GB309454A
GB309454A GB309454DA GB309454A GB 309454 A GB309454 A GB 309454A GB 309454D A GB309454D A GB 309454DA GB 309454 A GB309454 A GB 309454A
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United Kingdom
Prior art keywords
amino
bromoanthraquinone
heated
parent specification
yellow
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

309,454. I. G. Farbenindustrie Akt.- Ges. April 10. 1928, [Convention date]. Addition to 309,193. Anthraquinone vat dyes.-The process of the parent Specification is modified by using 2- amino-3-halogenanthraquinones or substitution product thereof as starting materials. When these are heated in an indifferent solvent with cuprous cyamide the corresponding 2-amino-3-cyanoanthraquinone is formed and undergoes further conversion to give the new compounds described in the parent Specification. In examples 2- amino-3-bromoanthraquinone, 1 : 2-diamino-3- bromoanthraquinone and 1: 3-dibromo-2-aminoanthraquinone are heated in quinoline in presence of cuprous cyanide to give products which dye cotton from the vat in orange-yellow, chocolate-brown, and yellow shades respectively.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573811A (en) * 1950-01-03 1951-11-06 Celanese Corp Process for producing 1 amino 2, 3 dicyano 4 oxyalkylamino anthraquinones
US2573733A (en) * 1950-01-03 1951-11-06 Celanese Corp Production of anthraquinone dyestuffs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573811A (en) * 1950-01-03 1951-11-06 Celanese Corp Process for producing 1 amino 2, 3 dicyano 4 oxyalkylamino anthraquinones
US2573733A (en) * 1950-01-03 1951-11-06 Celanese Corp Production of anthraquinone dyestuffs

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