ketone


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Related to ketone: Ketone bodies, ketosis

ketone

(kē`tōn), any of a class of organic compounds that contain the carbonyl groupcarbonyl group
, in chemistry, functional group that consists of an oxygen atom joined by a double bond to a carbon atom. The carbon atom is joined to the remainder of the molecule by two single bonds or one double bond.
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, C=O, and in which the carbonyl group is bonded only to carbon atoms. The general formula for a ketone is RCOR′, where R and R′ are alkyl or aryl groups. The simplest ketone, where R and R′ are methyl groups, is acetoneacetone
, dimethyl ketone
, or 2-propanone
, CH3COCH3, colorless, flammable liquid. Acetone melts at −94.8°C; and boils at 56.2°C;. It is the simplest aliphatic ketone.
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; this is one of the most important ketones used in industry. Low-molecular-weight ketones are used chiefly as solvents. Ketones may be prepared by several methods, including the oxidation of secondary alcohols and the destructive distillation of certain salts of organic acids. Ketones are related to the aldehydesaldehyde
[alcohol + New Lat. dehydrogenatus=dehydrogenated], any of a class of organic compounds that contain the carbonyl group, , and in which the carbonyl group is bonded to at least one hydrogen; the general formula for an aldehyde is RCHO, where R is hydrogen
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 but are less active chemically.

ketone

[′kē‚tōn]
(organic chemistry)
One of a class of chemical compounds of the general formula RR′CO, where R and R′ are alkyl, aryl, or heterocyclic radicals; the groups R and R′ may be the same or different, or incorporated into a ring; the ketones, acetone, and methyl ethyl ketone are used as solvents, and ketones in general are important intermediates in the synthesis of organic compounds.

ketone

any of a class of compounds with the general formula RʹCOR, where R and Rʹ are alkyl or aryl groups
References in periodicals archive ?
Ketone based solvents are organic solvents which contain the ketone group.
'Ketone bodies are one of the first examples of how a metabolite instructs stem cell fate in the intestine,' says Omer Yilmaz, the Eisen and Chang Career Development Associate Professor of Biology and a member of MIT's Koch Institute for Integrative Cancer Research.
Because MCTs are absorbed and turned into ketones quickly, they reach your brain quickly and contribute to producing BDNF.
Blood ketone levels and cardiorespiratory variables V[O.sub.2], VC[O.sub.2], [V.sub.E], RER, and RR were analyzed with paired t tests.
Small less intense peaks around 1250 cm -1 and 1730 cm -1 are due to the presence of ether and ketone functional groups, respectively [19].
Ketone supplementation decreases tumor cell viability and prolongs survival of mice with metastatic cancer.
The ketogenic diet is contraindicated in patients unable to metabolize fatty acids to produce ketone bodies as an energy source.
It is well understood that dietary restriction in the form of calorie or carbohydrate deprivation is conducive to ketogenesis and serum ketone elevation [10].
The observational and experimental studies on animals revealed that ketone bodies in the CNS not only are a source of energy but also have an impact on its functioning.
"Ketone therapy" is backed by decades of medical and clinical research, and has proven to be both safe and effective for the treatment of variety of health issues, including the following: Alzheimer's disease Parkinson's disease stroke Multiple sclerosis heart disease cancer diabetes obesity metabolic syndrome Crohn's disease ulcerative colitis irritable bowel syndrome glaucoma macular degeneration migraine headaches sleep disorders
An advert for ULTRAPur Wild Raspberry Ketone - a weight loss supplement - features a picture of the star in a bikini.