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Lookup NU author(s): Dr Christopher Vane,
Dr Geoffrey AbbottORCiD
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Methoxyphenols can be used as proxies for terrestrial biomass when investigating the chemical changes in lignin during hydrothermal alteration. The closed system microscale pyrolysis of 2-methoxyphenol (2-MOP) and 2,6-dimethoxyphenol (2,6-DMP), in the presence of water vapour, has been studied in borosilicate glass vessels. 2-MOP was heated isothermally at temperatures of 330 degrees C for 96 h and 2,6-DMP was heated isothermally at 300 degrees C for 118 h. Pyrolysis of the model compound 2-MOP gave a simple product distribution which was composed mainly of 1,2-dihydroxybenzene with lower amounts of 2-methylphenol and phenol. The prominent reaction products from heating 2,6-DMP were 1,2-dihydroxy-6-methoxybenzene and 2-methoxy-6-methylphenol, with minor amounts of 2-MOP, 1,2-dihydroxybenzene and 2-methylphenol. The decreasing amounts of 2,6-DMP with heating time and the concomitant increase in the amounts of 1,2-dihydroxy-6-methoxybenzene suggested that demethylation had occurred. (C) 1999 Elsevier Science Ltd. All rights reserved.
Author(s): Vane CH, Abbott GD
Publication type: Article
Publication status: Published
Journal: Organic Geochemistry
Print publication date: 03/12/1999
ISSN (print): 0146-6380
ISSN (electronic): 1873-5290
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