- Transformation of dyes and related compounds in anoxic sediment: kinetics and products
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The reactions of several azo, anthraquinone, and quinoline dyes were studied in settled sediments. Both the anthrone from Disperse Red 9 and the demethylation product of Disperse Red 11 reacted with half-lives of a few months, but other major products were not detected. An azo dye (Solvent Red 1) and a quinoline dye (Solvent Yellow 33) were transformed with half-lives of a few days andmonths, respectively. -from Authors
- Baughman,Weber
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- PHOTOCHEMICAL REACTION OF 9,10-ANTHRAQUINONE AND ITS DERIVATIVES WITH PYRIDINE
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The previously unknown photochemical reaction of 9,10-anthraquinone with pyridine in an atmosphere of argon takes place with formation of 2-(1,2-dihydropyridino)- or 2-(1,4-dihydropyridino)-9,10-anthraquinone, which is converted by the action of alkali into 2-aminoanthraquinone.In the presence of atmospheric oxygen the reaction product after treatment whith alkali is 1-aminoanthraquinone in addition to 2-aminoanthraquinone.The 1- and 2-methoxyanthraquinones and chloroanthraquinones react with pyridine in the light and form, after treatment with alkali, substituted aminoanthraquinones.
- Loskutov, V.A.,Lukonina, S.M.,Konstantinova, A.V.,Fokin, E.P.
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p. 500 - 504
(2007/10/02)
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