We isolated aromatics-degrading bacteria from the gut of a lower termite, Coptotermes formosanus, using a mineral salt medium containing various aromatic compounds as the sole carbon source. Two species, Burkholderia sp. strain VE22 and Citrobacter sp. strain VA53, were isolated by aerobic enrichment culture with veratraldehyde and vanillin, respectively. Strain VA53 could also grow and metabol...

Mononuclear aromatic compounds are degraded anaerobically through pathways that are basically different from those used in the presence of oxygen. Whereas aerobic degradation destabilizes the aromatic π-electron system by oxidative steps through oxygenase reactions, anaerobic degradation is most often initiated by a reductive attack. The benzoyl-CoA pathway is the most important metabolic route...

Cyclophane-type macrocyclic compounds from 21 to 56 members having two fused dihydrofuran rings were synthesized by the manganese(III)-mediated oxidation of terminal dienes with bis(3-oxobutanoate)s containing aromatics. The reaction detail, characterization and reaction pathways are described.

Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Atmospheric Chemistry and Physics Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Em...

7,12-Dimethylbenz[a]anthracene (7,12-DMBA) exerts adrenocorticolytic effects which set it apart from all other polynuclear aromatic hydrocarbons and aromatic amines which have been investigated. Adrenal damage by this compound appears to be due to its steric and electronic properties together with its unusually high solubility in lipides. Many compounds given prior to 7,12-DMBA induced protecti...

The performance of diesel fuel is predominantly determined by its ignition quality. This parameter is known as the Cetane number. The Cetane number describes the volume % Cetane (hexadecane) present in a mixture of Cetane and 1-Methylnaphthalene. Generally, in order to provide the best performance and lifetime of an engine, the amount of aromatics in diesel should be as low as possible. For the...

C−H bond formylation is the most immediate way to incorporate versatile formyl group into (hetero)aromatics. However, type of reagents and severe conditions involved in classical methods often curtail their application, especially presence other functional groups. Herein, we present Eschenmoser's salt, a commercially available (dimethylamino)methylating chemical, as useful reagent for indolizin...

Custom-designed surfactants, known as "linactants", have the ability to reduce the line tension between coexisting phases within mixed monolayers of chemically dissimilar compounds at the air-water interface. Thus far, linactants have been successfully identified for only one type of chemical dissimilarity, involving mixed monolayers of hydrocarbon and fluorocarbon surfactants. In the present w...