Dyes for synthetic-polymer fibres: I72 I72 V 2 14H-naphtho[2,3-a]phenothiazine-8,13-diones I72 I72 V 3 and 1H-2,3-dihydroanthra[2,1-b][1,4]-thiazine-7,12-diones I72 I72 V 3 |
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| Authors: | A.T. Peters I I V B.A. Tenny I I V |
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| Affiliation: | A.T. Peters I72 I72 V 2,B.A. Tenny I72 I72 V 2 |
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| Abstract: | Condensation of 1-amino- or 1-hydroxy-2-bromoanthraquinones with 2-amino-benzenethiol, I72 I72 V 2 or of 1-amino-2-bromoanthraquinones with 2-nitrobenzenethiol I72 I72 V 3 gives 14H-naphtho[2,3-a]-phenothiazine-8,13-diones. The related 1H-2,3- I72 I72 V 3 dihydroanthra[2,1-b][1,4]thiazine-7,12-diones result from interaction of 1- I72 I72 V 3 amino-2-mercaptoanthraquinones with 1,2-dibromoethane or of 1-hydroxy-2- I72 I72 V 3 bromoanthraquinones with 2-aminoethanethiol. The colour, dyeing and fastness I72 I72 V 3 properties of these compounds on synthetic-polymer fibres are described. I72 I72 V 3 |
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