ketone

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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.
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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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ketone

any of a class of compounds with the general formula RʹCOR, where R and Rʹ are alkyl or aryl groups
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Aldehydic and ketonic acids are converted to their oxime derivatives to stabilize the oxo group before extraction and silylation.
This indicated that the oxidation process occur by the formation of ketonic and aldehydic carbonyl groups.
[USPRwire, Tue Dec 18 2018] Acetone derivatives are organic compounds which have a ketonic functional group.
[ClickPress, Mon Dec 03 2018] Acetone derivatives are organic compounds which have a ketonic functional group.
The patients compared to controls showed different levels of ketonic bodies as a marker of altered myocardial metabolism meaning that one of the pathological features of this pathology could be a reduction in fatty acids oxidation and an increase of glucose metabolism.
It was observed that the sample is composed of the alcohols, amines and ketonic compounds.
This involves the oxidation of the aldehydic and/or ketonic groups present in the sugar to the carboxylic group and 3,5-dinitrosalicylic acid is reduced to 3,5-diaminosalicylic acid under alkaline conditions.
Peaks around 1760-1670 [cm.sup.-1] arising from C=O of aldehydic, ketonic ester or carboxylic residues were seen in the spectra of lemongrass oil SL, cinnamon oil SL, basil, Bergamot, and Ylang ylang oil SL.
Reaction of 1 with indole gave compound 8, through condensation of 2 moles of indole with the ketonic group in compound 1.
Activities of ketonic fraction from Leptospermum scoparum alone and synergism in combination with some antibiotics against various combination with some antibiotics against various bacterial strains and fungi.
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