diketone

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diketone

[dī′kē‚tōn]
(organic chemistry)
A molecule containing two ketone carbonyl groups.
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These case studies are focused on read-across of (un-)branched carboxylic acids for the prediction of microvesicular liver steatosis (CS-1); on the effects of valproic acid analogues regarding their developmental and reproductive toxicity (CS-2); on mitochondrial toxicity effects regarding repeated dose toxicity and developmental and reproductive toxicity (CS-4); and CS-8 is focused on read-across of diketones as the trigger for the 'Popcorn Lung'.
EUTOXRISK
The other compounds detected in beer are vicinal diketones, also produced as byproducts of the synthesis pathway of some amino acids during fermentation and diacetyl, that is, more flavour-active than the other, mainly responsible for the buttery flavour in beer [33].
Impact of Osmotic Distillation on the Sensory Properties and Quality of Low Alcohol Beer
Acylpyrazolone derivatives, mostly known for their use as analytical reagents in the extraction and separation of various metal ions, made possible because of their chelating properties, are a group of bidentate diketones that have been well researched [7-10].
Substituted 4-Acyl-5-methyl-2-phenyl-pyrazol-3-one-phenylhydrazones with Antioxidant Properties: X-Ray Crystal and Spectroscopic Studies
Among the best methods for pyrazole synthesis is the condensation of 1,3- diketones with hydrazines in the presence of acids, such as hydrochloric acid [22], sulfuric acid [23] and polystyrene supported sulfuric acid [24].
Acid Catalyzed Solvent Free Synthesis of New 1-Acyl-4-benzhydryl Substituted Pyrazoles
One of the most important diketones is diacetyle (butan-2, 3-dione) with sweet buttery and vanilla aroma.
Study of partial substitution of NaCl with KCl on aroma characteristics of UF white cheese
Because diacetyl and 2,3-pentanedione, both diketones, are chemically very similar, Morgan suspected that inhaled 2,3-pentanedione may be toxic to the respiratory tract as well.
Still searching for better butter flavoring
Effects of plant antioxidants and natural vicinal diketones on methane production, studied in vitro with rumen fluid and a polylactate as maintenance substrate.
Effects of defaunation on fermentation characteristics and methane production by rumen microbes in vitro when incubated with starchy feed sources
Activation of light-curing systems occurs after production of free radicals in the activation of a photoinitiator (diketones such as camphoroquinone) followed by reduction of a photoinitiator activated by an alymphatic amine, allowing liberation of free radicals.
Sistemas adhesivos autograbadores, resistencia de union y nanofiltracion: una revision
Among the diketones available, the most frequently used is camphorquinone (CQ).
Effect of irradiation times on the polymerization depth of contemporary fissure sealants with different opacities
A mixture of 3, 4 dimethoxy aldehyde (0.01 M), substituted diketones (0.01 M) and urea (0.015 M) in methanol was refluxed for 12 hours in presence of few drops of con.
Synthesis and ultrasonic studies of some dihydro pyrimidines in different solvents at 298.15k
In the light of the information referred to above we made an attempt to obtain diketones 2 and 3 directly from lactone 1 by hydroboration (Scheme 2).
Synthesis of substituted cyclopentanones from 2-oxabicyclo[3.3.0]oct-6-en-3-one/Asendatud tsuklopentanoonide suntees 2-oksabitsuklo[3.3.0]okta-6-een-3-oonist
Grossman, technical director, Synthetic Products Co., reports that key company experiments have revealed the bridging effects of ligands, such as 1, 3 diketones, that hold together different interacting metals, such as barium and zinc.
Additives: technology for performance

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