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Hydroxyhydroquinone triacetate

The hydroxyhydroquinone triacetate keeps quite satisfactorily in an atmosphere of carbon dioxide. [Pg.36]

The method described above is essentially the same as that of Thiele,1 which has been patented by F. Bayer and Company.2 Hydroxyhydroquinone triacetate has also been obtained by acetylating hydroxyhydroquinone formed by the alkali fusion of hydroquinone.3... [Pg.36]

Synthesis. Hydroxyhydroquinone is not produced on a large scale, but many uses for it are being developed. The most convenient preparation of hydroxyhydroquinone is the reaction of -benzoquinone with acetic anhydride in the presence of sulfuric acid or phosphoric acid. The resultant triacetate (29) can be hydrolyzed to hydroxyhydroquinone (86). [Pg.380]

Analysis. Dilute aqueous solutions of hydroxyhydroquinone turn blue-green temporarily when mixed with ferric chloride. The solutions darken upon addition of small amounts, and turn red with additions of larger amounts of sodium carbonate. Derivatives used for identification are the picrate, which forms orange-red needles (mp of 96°C), and the triacetate (mp 96—97°C). Thin-layer chromatography and liquid chromatography are well suited for the qualitative and quantitative estimation of hydroxyhydroquinone (93,94). [Pg.380]

See other pages where Hydroxyhydroquinone triacetate is mentioned: [Pg.136]    [Pg.46]    [Pg.24]    [Pg.66]    [Pg.55]    [Pg.69]    [Pg.52]    [Pg.136]    [Pg.46]    [Pg.24]    [Pg.66]    [Pg.55]    [Pg.69]    [Pg.52]    [Pg.167]   
See also in sourсe #XX -- [ Pg.4 , Pg.33 , Pg.45 ]

See also in sourсe #XX -- [ Pg.35 , Pg.45 ]

See also in sourсe #XX -- [ Pg.35 , Pg.45 ]

See also in sourсe #XX -- [ Pg.35 , Pg.45 ]

See also in sourсe #XX -- [ Pg.4 , Pg.35 , Pg.45 ]



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