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 ?
Researchers at the University of British Columbia and University of Oxford demonstrated that a single drink of ketone ester enables better control of blood sugar by reducing spikes in sugar levels.
One mum, Louise Hart, 40, saw the raspberry ketone ad and hoped the supplement would get her in to similar shape.
When consumed, the liver very quickly converts MCT fatty acids into ketone bodies, which then circulate throughout the body, including passing the blood-brain barrier.
Data recorded included complaints, age, obstetric history, date of last menstrual period, vital signs (blood pressure, arterial pulse, fever, respiratory rate, and oxygen saturation), capillary blood, urine ketone values upon admission, and length of hospital stay.
Key words: a-Monobromination, Aryl methyl ketones, Ammonium hydrotribromide salts, Acetyl carbazole.
A series of novel copolymers of poly(ether ketone ether ketone ketone) and poly(ether ketone ketone ether ketone ketone) containing 1,4-naphthylene moieties were prepared by the Friedel-Crafts acylation solution copolycondensation of terephthaloyl chloride (TPC) with a mixture of BPOBN and DPOBPN, over a wide range of BPOBN/DPOBPN molar ratios, in the presence of anhydrous Al[Cl.
Europe is the global leader in the consumption of polyether ether ketone (PEEK) and this dominance is expected to continue till 2020.
The most convenient place for me to find ketone strips is at my local pharmacy.
18 July 2014 - US Akers Biosciences Inc (NASDAQ:AKER; LON:AKR), a developer of rapid diagnostic screening and testing products, said yesterday it had received a US patent protecting its Breath Ketone detection device.
Raspberry ketone pills are herbal tablets which it is claimed speed up the metabolism.
The sale of the product generally begins with the offer of a free trial and is a classic "subscription trap", according to the Middlesbrough Council department which has received a number of complaints about raspberry ketone.
Urine ketone level was measured using a nitroprusside reaction and bilirubin was measured by the diazo method on an Aution Max AX-4280 automated urine chemistry analyzer (Iris Diagnostics, Chatsworth, California).