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Methylcatechol
Methylcatechol may refer to: * Guaiacol Guaiacol () is an organic compound with the formula C6H4(OH)(OCH3). It is a phenolic compound containing an methoxy functional group. Guaiacol appears as a viscous colorless oil, although aged or impure samples are often yellowish. It occurs wid ... (''O''-methylcatechol) * 3-Methylcatechol * 4-Methylcatechol {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3-Methylcatechol
3-Methylcatechol is a chemical compound, a methylbenzenediol. Metabolism The enzyme 1,2-dihydroxy-6-methylcyclohexa-3,5-dienecarboxylate dehydrogenase uses 1,2-dihydroxy-6-methylcyclohexa-3,5-dienecarboxylate and NAD+ to produce 3-methylcatechol, NADH and CO2. The isofunctional enzymes of catechol 1,2-dioxygenase from species of '' Acinetobacter'', '' Pseudomonas'', ''Nocardia'', '' Alcaligenes'' and ''Corynebacterium'' oxidize 3-methylcatechol according to both the intradiol and extradiol cleavage patterns. However, the enzyme preparations from '' Brevibacterium'' and ''Arthrobacter'' have only the intradiol cleavage activity.Extradiol Cleavage of 3-Methylcatechol by Catechol 1,2-Dioxygenase from Various Microorganisms. C. T. Hou, R. Patel and M. O. Lillard, Appl. Environ. Microbiol., March 1977, volume 33, issue 3, pages 725-727abstract Related compounds The 3-methylcatechol structural motif is rare in natural products. Known examples include calopin and a δ- lacton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guaiacol
Guaiacol () is an organic compound with the formula C6H4(OH)(OCH3). It is a phenolic compound containing an methoxy functional group. Guaiacol appears as a viscous colorless oil, although aged or impure samples are often yellowish. It occurs widely in nature and is a common product of the pyrolysis of wood. Occurrence Guaiacol is usually derived from guaiacum or wood creosote. It is produced by a variety of plants. It is also found in essential oils from celery seeds, tobacco leaves, orange leaves, and lemon peels. The pure substance is colorless, but samples become yellow upon exposure to air and light. The compound is present in wood smoke, resulting from the pyrolysis of lignin. The compound contributes to the flavor of many substances such as whiskey and roasted coffee. Preparation The compound was first isolated by Otto Unverdorben in 1826. Guaiacol is produced by methylation of ''o''-catechol, for example using potash and dimethyl sulfate: :C6H4(OH)2 + (CH3O)2SO2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |