Results 181 to 190 of about 4,997,648 (225)
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Biosynthesis of phoslactomycins: cyclohexanecarboxylic acid as the starter unit
Tetrahedron, 2003Abstract Phoslactomycins (PLMs) A–F, produced by actinomycetes are polyketide-type antibiotics derived from a hydroxycyclohexanecarboxylic acid or a cyclohexanecarboxylic acid starter unit. Feeding experiments with [2-13C]shikimic acid indicated that the C-18 carbon of PLMs comes from C-5 of shikimate.
Hiroyuki Osada+3 more
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Analytical Letters, 2021
Two-dimensional gas chromatography (2D GC)–quadrupole time-of-flight mass spectrometry (QTOFMS) combined with derivatization was applied to determine naphthenic acids (NAs) in oil sand processed water (OSPW).
Chenyu Qian+4 more
semanticscholar +1 more source
Two-dimensional gas chromatography (2D GC)–quadrupole time-of-flight mass spectrometry (QTOFMS) combined with derivatization was applied to determine naphthenic acids (NAs) in oil sand processed water (OSPW).
Chenyu Qian+4 more
semanticscholar +1 more source
Kinetics and mechanism of coupled synthesis of cyclohexanecarboxylic acid
Russian Journal of Physical Chemistry A, 2015The effect of the nature of the anion in a palladium salt on a coupled process involving the oxidation of CO and hydrocarboxylation of cyclohexene in the PdX2-CuBr2-THF-H2O system was studied. The kinetics was investigated under the steady-state conditions.
O. N. Temkin+9 more
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Proceedings of the British Society of Animal Science, 1996
Microbial fermentation of lignoceluUosic feeds in the rumen produces 3-phenylpropionic (PPA) and cyclohexanecarboxylic (CHCA) acids. Feed phenolic cinnamic acids are regarded as the main precursors of PPA upon microbial action (Martin 1982b). CHCA can be
J. H. Pagella+3 more
semanticscholar +1 more source
Microbial fermentation of lignoceluUosic feeds in the rumen produces 3-phenylpropionic (PPA) and cyclohexanecarboxylic (CHCA) acids. Feed phenolic cinnamic acids are regarded as the main precursors of PPA upon microbial action (Martin 1982b). CHCA can be
J. H. Pagella+3 more
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Molecular and Cellular Biochemistry, 1985
The ability to convert cyclohexanecarboxylic acid to hippuric acid has been studied in liver from guinea pigs, rabbits, rats and mice using a gas chromatographic - mass spectrometric method employing selected ion monitoring. Guinea pig liver showed the highest activity, giving values double of those found in rabbit liver and five times those in rat ...
Asbjørn Svardal, Ronald R. Scheline
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The ability to convert cyclohexanecarboxylic acid to hippuric acid has been studied in liver from guinea pigs, rabbits, rats and mice using a gas chromatographic - mass spectrometric method employing selected ion monitoring. Guinea pig liver showed the highest activity, giving values double of those found in rabbit liver and five times those in rat ...
Asbjørn Svardal, Ronald R. Scheline
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Molecular Conformations of 4-Aminomethyl-1-cyclohexanecarboxylic Acids in Aqueous Solution
, 1981The structures of cis- and trans-4-aminomethyl-1 -cyclohexanecarboxylic acids were studied by proton and carbon-13 NMR, and by semiempirical molecular orbital methods (CNDO/2 and MNDO). Both isomers exist in zwitter ionic forms in aqueous solution.
M. Yanaka+3 more
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Pharmacological insights into the multifaceted biological properties of quinic acid
Biotechnology & Genetic Engineering Reviews, 2022Quinic acid is a cyclohexanecarboxylic acid contained in the extracts of several parts of medicinal plants including Haematocarpus validus, Hypericum empetrifolium, Achillea pseudoaleppica, Rumex nepalensis, Phagnalon saxatile subsp.
T. Benali+10 more
semanticscholar +1 more source
, 2000
The AlCl3 catalysed addition of benzene to cis-2-benzoylcyclohex-4-enecarboxylic acid results in the product, t-5-phenyl-c-2-benzoyl-r-1-cyclohexanecarboxylic acid (2), but not in its 2-trans epimer (5) as has been reported previously in the literature ...
K. Klika+6 more
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The AlCl3 catalysed addition of benzene to cis-2-benzoylcyclohex-4-enecarboxylic acid results in the product, t-5-phenyl-c-2-benzoyl-r-1-cyclohexanecarboxylic acid (2), but not in its 2-trans epimer (5) as has been reported previously in the literature ...
K. Klika+6 more
semanticscholar +1 more source
Diversions of the Shikimate Pathway — The Biosynthesis of Cyclohexanecarboxylic Acid
1992The shikimic acid pathway1 has evolved in plants and microorganisms to provide for the synthesis of the aromatic amino acids, phenylalanine, tyrosine and tryptophan, as well as a number of other essential aromatic compounds, e.g., jo-aminobenzoic acid, the precursor of folic acid, or]D-hydroxybenzoic acid, the precursor of ubiquinone.
Karl Poralla+17 more
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Journal of Hazardous Materials, 2021
Degradation kinetics, by-products identification and pathways of a model naphthenic acid, cyclohexanecarboxylic acid (CHA), by the UV/Chlorine process were investigated in this study. Mathematical modeling indicated that the initial CHA decay rate increased rapidly with the chlorine dose when the chlorine dose was lower than 45 mg/L and decreased with ...
Mohamed Gamal El-Din+5 more
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Degradation kinetics, by-products identification and pathways of a model naphthenic acid, cyclohexanecarboxylic acid (CHA), by the UV/Chlorine process were investigated in this study. Mathematical modeling indicated that the initial CHA decay rate increased rapidly with the chlorine dose when the chlorine dose was lower than 45 mg/L and decreased with ...
Mohamed Gamal El-Din+5 more
openaire +3 more sources