gamma-valerolactone

dihydro-5-methyl-2(3H)-furanone 4,5- dihydro-5-methyl-2(3H)-furanone 2(3H)- furanone, dihydro-5-methyl- 4- hydroxypentanoic acid gamma-lactone 4- hydroxyvaleric acid gamma-lactone 4- hydroxyvaleric acid lactone 4- methyl butan-4-olide 5- methyl tetrahydro-2-furanone 4- methyl-4-hydroxybutanoic acid lactone 4- methyl-gamma-butyrolactone gamma- methyl-gamma-butyrolactone 4- methylbutan-4-olide 5- methyldihydro-2(3H)-furanone 5- methyldihydrofuran-2(3H)-one 5- methyloxolan-2-one gamma- pentalactone pentano-1,4-lactone 4- pentanolide gamma- valeractone (±)-gamma- valerolactone 4- valerolactone gamma valerolactone nat.gamma- valerolactone gamma- valerolactone FCC valerolactone gamma valerolactone gamma natural gamma- valerolactone natural gamma- valerolactone synthetic gamma- valeryl lactone gamma- verolactone PubMed: Integration of mild acid hydrolysis in γ-valerolactone/water system for enhancement of enzymatic saccharification from cotton stalk. PubMed: Conversion of corn stalk into furfural using a novel heterogeneous strong acid catalyst in γ-valerolactone. PubMed: Atom-economical synthesis of γ-valerolactone with self-supplied hydrogen from methanol. PubMed: Effects of Metabolites Produced from (-)-Epigallocatechin Gallate by Rat Intestinal Bacteria on Angiotensin I-Converting Enzyme Activity and Blood Pressure in Spontaneously Hypertensive Rats. PubMed: Conversion of levulinic acid into γ-valerolactone using Fe3(CO)12: mimicking a biorefinery setting by exploiting crude liquors from biomass acid hydrolysis. PubMed: Porous Zirconium-Phytic Acid Hybrid: a Highly Efficient Catalyst for Meerwein-Ponndorf-Verley Reductions. PubMed: Insights into the Lactonase Mechanism of Serum Paraoxonase 1 (PON1): Experimental and Quantum Mechanics/Molecular Mechanics (QM/MM) Studies. PubMed: Acid-Functionalized Mesoporous Carbon: An Efficient Support for Ruthenium-Catalyzed γ-Valerolactone Production. PubMed: Profiling a gut microbiota-generated catechin metabolite's fate in human blood cells using a metabolomic approach. PubMed: Influence of age on the absorption, metabolism, and excretion of cocoa flavanols in healthy subjects. PubMed: Selective Hydrogenation of Furfural to Furfuryl Alcohol in the Presence of a Recyclable Cobalt/SBA-15 Catalyst. PubMed: In Situ Catalytic Hydrogenation of Biomass-Derived Methyl Levulinate to γ-Valerolactone in Methanol. PubMed: Cascade upgrading of γ-valerolactone to biofuels. PubMed: Solvent-enabled nonenyzmatic sugar production from biomass for chemical and biological upgrading. PubMed: High performing and stable supported nano-alloys for the catalytic hydrogenation of levulinic acid to γ-valerolactone. PubMed: Biotransformation of (-)-epigallocatechin and (-)-gallocatechin by intestinal bacteria involved in isoflavone metabolism. PubMed: A lignocellulosic ethanol strategy via nonenzymatic sugar production: process synthesis and analysis. PubMed: Titania-Supported Catalysts for Levulinic Acid Hydrogenation: Influence of Support and its Impact on γ-Valerolactone Yield. PubMed: Highly sensitive analysis of polyphenols and their metabolites in human blood cells using dispersive SPE extraction and LC-MS/MS. PubMed: Hydrodeoxygenation processes: advances on catalytic transformations of biomass-derived platform chemicals into hydrocarbon fuels. PubMed: Advanced biorefinery based on the fractionation of biomass in γ-valerolactone and water. PubMed: Solvent effects in acid-catalyzed biomass conversion reactions. PubMed: Efficient, solvent-free hydrogenation of α-angelica lactone catalysed by Ru/C at atmospheric pressure and room temperature. PubMed: Role of water in metal catalyst performance for ketone hydrogenation: a joint experimental and theoretical study on levulinic acid conversion into gamma-valerolactone. PubMed: Isolation and characterization of rat intestinal bacteria involved in biotransformation of (-)-epigallocatechin. PubMed: Catalytic conversion of γ-valerolactone to ε-caprolactam: towards nylon from renewable feedstock. PubMed: Is the age-related loss in olfactory sensitivity similar for light and heavy molecules? PubMed: Nonenzymatic sugar production from biomass using biomass-derived γ-valerolactone. PubMed: Production of furfural from xylose, xylan and corncob in gamma-valerolactone using FeCl3·6H2O as catalyst. PubMed: Production of 4-valerolactone by an equilibrium-limited transformation in a partitioning bioreactor: impact of absorptive polymer properties. PubMed: Acet-oxy-γ-valerolactone. PubMed: Domino reaction catalyzed by zeolites with Brønsted and Lewis acid sites for the production of γ-valerolactone from furfural. PubMed: Conversion of carbohydrate biomass to γ-valerolactone by using water-soluble and reusable iridium complexes in acidic aqueous media. PubMed: Eco-solvents--cluster-formation, surfactantless microemulsions and facilitated hydrotropy. PubMed: Studies on the microbial synthesis and characterization of polyhydroxyalkanoates containing 4-hydroxyvalerate using γ-valerolactone. PubMed: RANEY® Ni catalyzed transfer hydrogenation of levulinate esters to γ-valerolactone at room temperature. PubMed: Facilitated uptake of a bioactive metabolite of maritime pine bark extract (pycnogenol) into human erythrocytes. PubMed: Uptake of gamma-valerolactone--detection of gamma-hydroxyvaleric acid in human urine samples. PubMed: Ionic-liquid-catalyzed efficient transformation of γ-valerolactone to methyl 3-pentenoate under mild conditions. PubMed: Electricity storage in biofuels: selective electrocatalytic reduction of levulinic acid to valeric acid or γ-valerolactone. PubMed: A chemo-enzymatic route to synthesize (S)-γ-valerolactone from levulinic acid. PubMed: Conversion of hemicellulose into furfural using solid acid catalysts in γ-valerolactone. PubMed: Electrophysiological responses of the olfactory receptors of the tick Amblyomma cajennense (Acari: Ixodidae) to host-related and tick pheromone-related synthetic compounds. PubMed: Development of heterogeneous catalysts for the conversion of levulinic acid to γ-valerolactone. PubMed: Structural elucidation and quantification of phenolic conjugates present in human urine after tea intake. PubMed: Origin of selectivity of Tsuji-Trost allylic alkylation of lactones: highly ordered transition states with lithium-containing enolates. PubMed: Facilitated cellular uptake and suppression of inducible nitric oxide synthase by a metabolite of maritime pine bark extract (Pycnogenol). PubMed: Production of aromatic hydrocarbons through catalytic pyrolysis of γ-valerolactone from biomass. PubMed: Inhibition of acetylcholinesterase by green and white tea and their simulated intestinal metabolites. PubMed: Intake of dietary procyanidins does not contribute to the pool of circulating flavanols in humans. PubMed: Gamma butyrolactone (GBL) and gamma valerolactone (GVL): similarities and differences in their effects on the acoustic startle reflex and the conditioned enhancement of startle in the rat. PubMed: In vitro fermentation of a red wine extract by human gut microbiota: changes in microbial groups and formation of phenolic metabolites. PubMed: Conversion of biomass-derived levulinate and formate esters into γ-valerolactone over supported gold catalysts. PubMed: Liquid-phase catalytic transfer hydrogenation and cyclization of levulinic acid and its esters to γ-valerolactone over metal oxide catalysts. PubMed: Selective homogeneous hydrogenation of biogenic carboxylic acids with [Ru(TriPhos)H]+: a mechanistic study. PubMed: Hydrogen-independent reductive transformation of carbohydrate biomass into γ-valerolactone and pyrrolidone derivatives with supported gold catalysts. PubMed: Synthesis, analytical features, and biological relevance of 5-(3',4'-dihydroxyphenyl)-γ-valerolactone, a microbial metabolite derived from the catabolism of dietary flavan-3-ols. PubMed: Isolation of catechin-converting human intestinal bacteria. PubMed: Reactive extraction of levulinate esters and conversion to γ-valerolactone for production of liquid fuels. PubMed: Antioxidative activity of microbial metabolites of (-)-epigallocatechin gallate produced in rat intestines. PubMed: Simultaneous determination of γ-Hydroxybutyrate (GHB) and its analogues (GBL, 1.4-BD, GVL) in whole blood and urine by liquid chromatography coupled to tandem mass spectrometry. PubMed: Metabolism of green tea catechins by the human small intestine. PubMed: Conversion of levulinic acid and formic acid into γ-valerolactone over heterogeneous catalysts. PubMed: Plasma protein binding of polyphenols from maritime pine bark extract (USP). PubMed: Chemistry. Connecting biomass and petroleum processing with a chemical bridge. PubMed: γ-Valerolactone ring-opening and decarboxylation over SiO2/Al2O3 in the presence of water. PubMed: Integrated catalytic conversion of gamma-valerolactone to liquid alkenes for transportation fuels. PubMed: A methodology to estimate concentration profiles from two-dimensional covariance spectroscopy applied to kinetic data. PubMed: Bioavailability and catabolism of green tea flavan-3-ols in humans. PubMed: Palladium-catalyzed decarboxylative [4 + 3] cyclization of gamma-methylidene-delta-valerolactones with 1,1-dicyanocyclopropanes. PubMed: Profile of plasma and urine metabolites after the intake of almond [Prunus dulcis (Mill.) D.A. Webb] polyphenols in humans. PubMed: Characterization of two lactones in liquid phase: an experimental and computational approach. PubMed: Targeted metabolic profiling of phenolics in urine and plasma after regular consumption of cocoa by liquid chromatography-tandem mass spectrometry. PubMed: Catalytic conversion of biomass-derived carbohydrates into gamma-valerolactone without using an external H2 supply. PubMed: MCR-ALS for sequential estimation of FTIR-ATR spectra to resolve a curing process using global phase angle convergence criterion. PubMed: Procyanidin dimers are metabolized by human microbiota with 2-(3,4-dihydroxyphenyl)acetic acid and 5-(3,4-dihydroxyphenyl)-gamma-valerolactone as the major metabolites. PubMed: Human urinary metabolite profile of tea polyphenols analyzed by liquid chromatography/electrospray ionization tandem mass spectrometry with data-dependent acquisition. PubMed: Gamma-hydroxybutyrate concentrations in the blood of impaired drivers, users of illicit drugs, and medical examiner cases. PubMed: Maximising opportunities in supercritical chemistry: the continuous conversion of levulinic acid to gamma-valerolactone in CO(2). PubMed: Flavanol monomer-induced changes to the human faecal microflora. PubMed: Block copolymers for drug solubilisation: relative hydrophobicities of polyether and polyester micelle-core-forming blocks. PubMed: Towards 'bio-based' Nylon: conversion of gamma-valerolactone to methyl pentenoate under catalytic distillation conditions. PubMed: Cytoprotective constituent of Hoveniae Lignum on both Hep G2 cells and rat primary hepatocytes. PubMed: Single and multiple dose pharmacokinetics of maritime pine bark extract (pycnogenol) after oral administration to healthy volunteers. PubMed: "Ionic carbenes": synthesis, structural characterization, and reactivity of rare-Earth metal methylidene complexes. PubMed: Trends in gamma-hydroxybutyrate (GHB) and related drug intoxication: 1999 to 2003. PubMed: Analysis of GHB and 4-methyl-GHB in postmortem matrices after long-term storage. PubMed: A theoretical study on the origin of pi-facial stereoselectivity in the alkylation of enolates derived from 4-substituted gamma-butyrolactones. PubMed: Sequential arrangement of gamma-valerolactone enantiomers enclathrated in cholic acid channels as studied by 13C solid-state NMR: elucidation of the optical resolution mechanism. PubMed: Phenol and lactone receptors in the distal sensilla of the Haller's organ in Ixodes ricinus ticks and their possible role in host perception. PubMed: Antioxidant activity and inhibition of matrix metalloproteinases by metabolites of maritime pine bark extract (pycnogenol). PubMed: Urinary excretion of 5-(3',4'-dihydroxyphenyl)-gamma-valerolactone, a ring-fission metabolite of (-)-epicatechin, in rats and its in vitro antioxidant activity. PubMed: Identification of metabolites of (-)-epicatechin gallate and their metabolic fate in the rat. PubMed: Clinical pharmacokinetics of antioxidants and their impact on systemic oxidative stress. PubMed: Pharmacokinetics of (-)-epicatechin-3-O-gallate, an active component of Onpi-to, in rats. PubMed: [Preparation of gas chromatographic capillary columns with beta-cyclodextrin polymer stationary phase modified with methyl phenyl silicone(OV-17)]. PubMed: Biosynthesis and local sequence specific degradation of poly(3-hydroxyvalerate-co-4-hydroxybutyrate) in Hydrogenophaga pseudoflava. PubMed: Pharmacokinetics of tea catechins after ingestion of green tea and (-)-epigallocatechin-3-gallate by humans: formation of different metabolites and individual variability. PubMed: Urinary tea polyphenols in relation to gastric and esophageal cancers: a prospective study of men in Shanghai, China. PubMed: Identification and characterization of methylated and ring-fission metabolites of tea catechins formed in humans, mice, and rats. PubMed: Urinary metabolites of French maritime pine bark extract in humans. PubMed: Metabolic fate of (-)-[4-(3)H]epigallocatechin gallate in rats after oral administration. PubMed: Versatile 8-oxabicyclo[3.2.1]oct-6-en-3-one: stereoselective methodology for generating C-glycosides, delta-valerolactones, and polyacetate segments. PubMed: Analysis of urinary metabolites of tea catechins by liquid chromatography/electrospray ionization mass spectrometry. PubMed: Structural identification of two metabolites of catechins and their kinetics in human urine and blood after tea ingestion. PubMed: Pronounced differences in inhibition potency of lactone and non-lactone compounds for mouse and human coumarin 7-hydroxylases (CYP2A5 and CYP2A6). PubMed: Determination of free and glucuronated hexane metabolites without prior hydrolysis by liquid- and gas-chromatography coupled with mass spectrometry. PubMed: Comparison of thermal characteristics and degradation properties of epsilon-caprolactone copolymers. PubMed: Biosynthesis of poly(4-hydroxybutyric acid) by recombinant strains of Escherichia coli. PubMed: Method for the simultaneous quantification of n-hexane metabolites: application to n-hexane metabolism determination. PubMed: Toxic effects of hexane derivatives on cultured rat Schwann cells. PubMed: The metabolism of n-nonane in male Fischer 344 rats. PubMed: Identification of vertebrate volatiles stimulating olfactory receptors on tarsus I of the tick Amblyomma variegatum Fabricius (Ixodidae). I. Receptors within the Haller's organ capsule. PubMed: The influence of solvent stress on MMS-induced genetic change in Saccharomyces cerevisiae. PubMed: Induction of chromosome loss by mixtures of organic solvents including neurotoxins. PubMed: Aprotic polar solvents that affect porcine brain tubulin aggregation in vitro induce aneuploidy in yeast cells growing at low temperatures. PubMed: Urinary excretion of 2,5-hexanedione and peripheral polyneuropathies workers exposed to hexane. PubMed: Identification of the n-heptane metabolites in rat and human urine. PubMed: Impairment of human polymorphonuclear leukocyte chemotaxis by 2,5-hexanedione. PubMed: The microbial metabolism of condensed (+)-catechins by rat-caecal microflora. PubMed: Methodological investigations on the determination of n-hexane metabolites in urine. PubMed: Analysis of n-hexane, 2-hexanone, 2,5-hexanedione, and related chemicals by capillary gas chromatography and high-performance liquid chromatography. PubMed: Genetic change may be caused by interference with protein-protein interactions. PubMed: Identification of volatile metabolites of inhaled n-heptane in rat urine. PubMed: Changes of n-hexane neurotoxicity and its urinary metabolites by long-term co-exposure with MEK or toluene. PubMed: A study on biological monitoring of n-hexane exposure. PubMed: Changes of n-hexane metabolites in urine of rats exposed to various concentrations of n-hexane and to its mixture with toluene or MEK. PubMed: Urinary excretion of n-hexane metabolites. A comparative study in rat, rabbit and monkey. PubMed: Neurotoxic metabolites of "commercial hexane" in the urine of shoe factory workers. PubMed: Experimental neurotoxicity and urinary metabolites of the C5-C7 aliphatic hydrocarbons used as glue solvents in shoe manufacture. PubMed: Urinary excretion of the metabolites of n-hexane and its isomers during occupational exposure. PubMed: Measurement of the urinary metabolites of N-hexane, cyclohexane and their isomers by gas chromatography. PubMed: Pharmacokinetics of 14C-2-allophanyl-2-allyl -gamma-valero-lactone: a prodrug of proxibarbal in rats. PubMed: Cyclohexyl analogues of some antiinflammatory drugs. PubMed: Kinetics and mechanism of decomposition of some derivatives of 5-allylbarbituric acid. Part V. The course of hydrolysis of 5 allyl-5-(2'-hydroxypropyl)barbituric acid. PubMed: Central properties of alpha-allophanyl-alpha-allyl-gamma-valerolactone (valofan) [proceedings]. PubMed: Prevention of experimental gastric ulcers in rats by dial derivatives. PubMed: Presence of (+/-)-delta-(3,4-dihydroxyphenyl)-gamma-valerolactone in human urine. PubMed: Studies on flavonoid metabolism. Biliary and urinary excretion of metabolites of (+)-(U- 14 C)catechin. PubMed: New derivatives of alpha-ethyl-alpha-allophanyl-gamma-valerolactone. PubMed: Studies on flavonoid metabolism. Metabolism of (+)-[14C] catechin in the rat and guinea pig. PubMed: [Mutagenic action of alpha-aceto-beta-vinyl-gamma-valerolactone]. PubMed: 2-benzyl-5-(N,N-dimethylamino)-gamma-valerolactone, an inhibitor of plasma cholinesterase. PubMed: The influence of prolonged administration of alpha-allyl-allophanylphenyl-gamma-valerolactone (T1) on behavior and bioelectric brain activity in cats. PubMed: Studies on flavonoid metabolism. Metabolism of (+)-catechin in the guinea pig. PubMed: Metabolism of alpha-allyl-alpha-allophanyl-gamma-valerolactone. PubMed: DERIVATIVES OF ALPHA-PHENYL-ALPHA-ALLYL-GAMMA-VALEROLACTONE. PubMed: QUANTITATIVE DETERMINATION OF ALPHA-ALLYL-GAMMA-VALEROLACTONE IN PHYSIOLOGIC BODY FLUIDS. PubMed: Some derivatives of gamma-valerolactone.