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Anthragallols

Wool dyed with Rubia tinctorum and Galium verum Alizarin, quinalizarin, purpurin, xanthopurpurin, purpuroxanthin dimethyl ether, munjistin, rubiadin, nordamnacanthal, anthragallol, kermesic acid, hystazarin, emodin, quinizarin HCI/MeOH/ h2o A H20 B ACN with AcOH or FA 250 nm/ESI ( ) HPLC optimization... [Pg.371]

Standards, Aubusson tapestry from nineteenth century Gallic acid, dihydroxybenzoic acids, carminic acid, alizarin, purpurin, xanthopurpurin, quinizarin, emodin, morin, quercetin, luteolin, apigenin, rhamnetin, hystazarin, anthragallol HCI/MeOH/H20, DMSO A ACN B H20 with HCOOH 256 nm/ESI (+)... [Pg.384]

Anthragallols. The reagent is used to convert chloronaphthoquinoncs to anthragallols. An example is the conversion of 3-chloro-7-methyljuglone (2) to 7-hydroxyemodin (3). [Pg.384]

XIX Anthragallol-2-methyI ether — 1,3-Dihydroxy-2-methoxy-anthraquinone... [Pg.192]

XX Anthragallol-3-methyl ether — 1,2-Dihydroxy-3-methoxy-anthraquinone... [Pg.192]

The dried root was also found to contain purpuroxanthin (II) formed by separation of CO2. from munjistin (VII). Pseudopurpurin (XXIII) is probably decarboxylated with formation of purpurin (XXI) when the madder root is dried. The dried madder root also contains the following hydroxyanthraquinone dyes in small amounts nordamna-canthal (VI), quinizarin (IX), 1,4-dihydroxy-2-hydroxymethylanthra-quinone (XI), quinizarin-2-carboxylic acid (XII), anthragallol (XVIII), and anthragallol-3-methyl ether (XX) (32, 34, 39). [Pg.193]

A-Dihydroxy-6-methyl-anthraquinone (XIII) Physcion (XV) Anthragallol (XVIII) Anthragallol-3-fflethyl ether (XX)... [Pg.196]

This trioxyanthraquinone is not prepared from anthracene, but is obtained by condensation of gallic acid, with benzoic acid. In anthragallol the three hydroxyl-groups occupy adjacent positions [1 2 3]. [Pg.89]

Anthragallol has a brown colour, and dyes brown shades on alumina or chromic oxide. The commercial Alizarin Brown is a mixture of anthragallol with more or less rufigallic acid. [Pg.89]

The latter compound is hexaoxyanthraquinqne, and is formed in a similar manner to anthragallol by condensation of gallic acid. It belongs to the mordant anthraquinone-derivatives. [Pg.89]

S)-2-(Anilinomethyl)pyrrolidine, 458 Ansapeptides, 336-337 Anthemol, 186 Anthracydinones, 238, 260 Anthragallols, 384 Anthraquinones, 44,313 Anticapsin, 99... [Pg.258]

Alizarin blue was prepared from nitroalizarin, glycerol, and sulphuric acid by M. Prud homme, anthragallol (anthracene brown, i a 3-trihydroxy-anthraquinone) from pyrogallol and phthalic anhydride by C. Seuberlich, di- (or tetra-) azo dyes by Caro and Schraube, rhodamine from ammonium thiocyanate and chloracetic acid by M. Nencki, rocelline or echtrot (naphthalene sulphonic azonaphthol) by Roussin (1877) and Caro and Griess, and methylene blue by Caro (1877). ... [Pg.793]

See other pages where Anthragallols is mentioned: [Pg.59]    [Pg.335]    [Pg.59]    [Pg.432]    [Pg.489]    [Pg.509]    [Pg.192]    [Pg.197]    [Pg.197]    [Pg.90]    [Pg.333]    [Pg.333]    [Pg.87]    [Pg.87]    [Pg.659]    [Pg.659]    [Pg.659]    [Pg.624]    [Pg.616]    [Pg.559]    [Pg.185]   
See also in sourсe #XX -- [ Pg.384 ]



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Anthragallol

Anthragallol

Anthragallol 1,2-dimethyl ether

Anthragallol 2-methyl ether

Rubia tinctorum anthragallol from

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