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| Titel: |
Mass Spectra of Quinonemethide Products Derived from Reaction with Phenolics, Anthrone and Anthrahydroquinone |
| Auteur: |
Dimmel, Donald R. Shepard, Donaline |
| Verschenen in: |
Journal of wood chemistry and technology |
| Paginering: | Jaargang 1 (1981) nr. 2 pagina's 147-167 |
| Jaar: |
1981 |
| Inhoud: |
Several experiments have been performed to show the effects of anthrahydroquinone (AHQ), the reduced form of anthraquinone (AQ), on the self-condensation reactions of simple lignin models. These experiments were aimed at understanding the role of AQ as a wood pulping catalyst. The experiments led to some very complex product mixtures. A detailed analysis of the product mixtures by gas chromatography - mass spectrometry (GC/MS) was undertaken in order to understand how AHQ retarded phenolic-quinonemethide condensation reactions. The interpretation of the mass spectra is reported here. Two principal classes of compounds are discussed: phenolic condensation products and adducts derived from the reactions of quinonemethides with AHQ and anthrone. A method of volatilizing the sample prior to GC/MS analysis, namely derivatization with dimethyl sulfate In alkaline THF, produces by-products which contain incorporated THF. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 8 gevonden artikelen
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