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Items for "model compounds"

A selectivity study of reaction of the carbonate radical anion with methyl ?-d-cellobioside and methyl ?-d-glucoside in oxygenated aqueous solutions

In the presence of oxygen, radiolytically generated carbonate radical anions, CO3?–, were reacted with methyl ?-D-cellobioside and methyl ?-D-glucoside...

Keywords: carbohydrate, carbonate radical, glucosidic cleavage, hydrogen abstraction, intramolecular, model compounds, selectivity

03/2006 | Holzforschung, Walter de Gruyter
Comparative effect of ozone, chlorine dioxide, and hydrogen peroxide on lignin: Reactions affecting pulp colour in the final bleaching stage

Several lignin-like model compounds (vanillin, syringaldehyde, guaiacol, syringol, p-benzoquinone, naphthoquinone) and commercial softwood lignin were submitted to small charges of ozone, chlorine dioxide and hydrogen peroxide in aqueous solution under conditions simulating a final bleaching stage...

Keywords: bleaching, chlorine dioxide, colour, Hydrogen Peroxide, lignin, mechanisms, model compounds, Ozone, reactions

11/2007 | Holzforschung, Walter de Gruyter