Formation of Aromatic Compounds from Carbohydrates. VI. Reaction of Dihydroxyacetone in Slightly Acidic, Aqueous Solution.

Popoff, Thomas; Theander, Olof; Westerlund, Eric; Turner, Carlton E.; Enzell, Curt R.; Berg, Jan-Erik; Pilotti, Anne‐Marie

doi:10.3891/acta.chem.scand.32b-0001

Cited by 36 publications

(18 citation statements)

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“…It also has been used for the analysis of degradation products in paper. 19 Reference compounds were chosen because previous studies have identified them as compounds produced by the oxidation of cellulose, 20 by the oxidation of glucose, 20 ' 21 by acid-catalysed dehydration of glucose, 16 ' 2 " by the treatment of D-glucuronic acid in slightly acidic aqueous solutions 15 and by the thermolysis of hydroxymethylfurfural. 23 A thin layer chromatogram of 4 brown line extracts obtained with combination 1 is shown in Fig.…”

Section: Tlc Of (He Degradation Compoundsmentioning

confidence: 99%

Degradation of Cellulose at the Wet/Dry Interface. II. An Approach to the Identification of the Oxidation Compounds

Dupont¹

1996

Restaurator

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Section: Tlc Of (He Degradation Compoundsmentioning

confidence: 99%

Degradation of Cellulose at the Wet/Dry Interface. II. An Approach to the Identification of the Oxidation Compounds

Dupont¹

1996

Restaurator

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“…Some of these compounds, so called Theander products, arise from cellulose degradation starting from keto structures, e.g., oxidized spots in cellulose. They are formed mainly upon acidic, basic, and thermal treatment of polysaccharide fragments in the presence of air and thus their formation is largely independent of origin of the cellulosic material (Popoff & Theander, 1976a;Popoff & Theander, 1976b;Popoff, Theander, & Westerlund, 1978;Theander & Westerlund, 1980). Moreover secondary, mainly process-specific, chromophores are present in cellulose II products such as fibers, which are more prominent and color-intensive (Rosenau et al, 2007).…”

Section: Light Absorption In Polysaccharidesmentioning

confidence: 98%

Photoactive polysaccharides

Wondraczek

Kotiaho

Fardim

et al. 2011

Carbohydrate Polymers

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a b s t r a c tLight is a non-invasive stimulus or probe, which retains more and more attention in science and technology. In the present review the reader is informed about the important issue of the interactions of polysaccharides and light. Considering some aspects of polysaccharide structure and properties, topics such as absorption and fluorescence of polysaccharides, the structural analysis using light as a probe, and creation of new materials by combining chromophores and polysaccharides are discussed. Attention is also be given to polysaccharide derivatives, where absorption of light induces structural changes, including photocrosslinking and photochromism.

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“…Also, the high concentration of l after the heating-up period makes it reasonable to assume that it mainly originates from carbohydrates. The fragmentation and recombination reactions required for the formation of catechols from carbohydrates are not well understood, and the Situation is made more complicated by the findings that the same or related compounds may also arise from carbohydrates under neutral (Suortti 1983) and slightly acidic (e.g., Popoff and Theander 1976;Popoff et al 1978) conditions.…”

Section: Sources Of Catecholsmentioning

confidence: 98%

GLC-MS Studies on Pine Kraft Black Liquors Part V. Identification of Catechol Compounds

Niemelä¹

1989

Holzforschung

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The following catechol compounds were identified in pine kraft black liquor: Catechol, 7 alkylcatechols, 3,4-dihydroxybenzaldehyde, 3,4-dihydroxyacetophenone, 3,4-dihydroxybenzoic acid, 3,4-dihydroxyphenylacetic acid, 3-(3,4-dihydroxyphenyl)-l-propanol, and 3 a-hydroxy-(3,4-dihydroxyphenyl)-alkanoic acids.Their total amount corresponded to about 46 g/100 kg wood, of which catechol constituted the major pari. Catechol was mainly formed during the heating-up period, whereas the formation of other compounds was more pronounced during the later stages. Their formation from both lignin and carbohydrates is discussed.

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Formation of Aromatic Compounds from Carbohydrates. VI. Reaction of Dihydroxyacetone in Slightly Acidic, Aqueous Solution.

Cited by 36 publications

References 0 publications

Degradation of Cellulose at the Wet/Dry Interface. II. An Approach to the Identification of the Oxidation Compounds

Degradation of Cellulose at the Wet/Dry Interface. II. An Approach to the Identification of the Oxidation Compounds

Photoactive polysaccharides

GLC-MS Studies on Pine Kraft Black Liquors Part V. Identification of Catechol Compounds

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