4-Hydroxy-2-alkylquinolines (HAQs), especially 3,4-dihydroxy-2-heptylquinoline (Pseudomonas quinolone signal) and its precursor, 4-hydroxy-2-heptylquinoline, are attracting much attention, mainly because of their role as signaling molecules in Pseudomonas aeruginosa. The pqsABCDE operon is centrally involved in their biosynthesis. The presence of a homologous operon in Burkholderia pseudomallei...

In vivo 4-hydroxyamino[2-3H]quinoline 1-oxide-modified DNA and in vitro 4-acetoxyamino[2-3H]quinoline 1-oxide-modified DNA were enzymatically hydrolyzed, and the hydrolysates were analyzed by high-performance liquid chromatography. The two patterns were compared, and we showed that all of the high-performance liquid chromatography peaks which were recovered from in vivo-modified DNA were presen...

OBJECTIVE To study the degradation of pyridine and quinoline by two Pseudomonas. METHODS Based on the analysis of 16S rRNA gene sequence homology and the intergenic spacer region sequence, the two isolates were identified. The degradation capability of pyridine and quinoline was determined according to spectrophotometry and Electrospray Ionisation/Mass Spectrometry (ESI/MS). The degrading pla...

Anoxybacillus rupiensis Ir2 (JQ912240), thermophilic bacteria capable of utilizing aromatic hydrocarbon especially N-compounds that form part of petroleum components.In an attempt to investigate the ability of this bacterium to degrade quinoline and indole, the strain Ir2 was grown on these N-compounds separately as a sole source of carbon and nitrogen. Results showed that strain Ir2 was able t...

The title compound, [Ru(C10H8N2)2(C16H12N4O)](BF4)2·3CH2Cl2, crystallizes with one complex dication, two BF4 (-) counter-anions and three di-chloro-methane solvent mol-ecules in the asymmetric unit. The central Ru(II) atom adopts a distorted octa-hedral coordination sphere with two 2,2'-bi-pyridine (bpy) and one quinoline-2-carbaldehyde (pyridine-2-carbon-yl)hydrazone (HL) ligand. The hydrazone...

Reaction of pentafluoropyridine with 2 or 8-hydroxyl-quinoline under basic conditions in acetonitrile gives 4-oxy quinoline 2,3,5,6-tetrafluoropyridine derivatives in good yields. All the compounds were characterized using 1H, 13C, 19F-NMR and MS spectroscopy.