ketone


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
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.
..... Click the link for more information.
, 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.
..... Click the link for more information.
; 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
..... Click the link for more information.
 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 ?
It is well documented that poly(ether ketone ketone) with 100 mol% IPC (PEKwK) had three major diffraction peaks at 20 that are 18.
Pure Health's Raspberry Ketone product is far superior to the others on the market, which is why I include them as a supplement for all my clients who are trying to lose weight, they also are fantastic for supporting digestion," said Erick Recinos, CN, nutritional consultant to Pure Health.
In addition to the analytical part, the report provides a range of tables and figures which all together give a true insight into the national, regional and global markets for methyl ethyl ketone.
Lorraine was alerted to the claims when a fan contacted her on Twitter saying: "Do you know these people are using your pictures to advertise their raspberry ketone tablets?
1) However, laboratory practice is inconsistent in the use of urine confirmatory tests for the presence of ketones and bilirubin in urine.
Raspberry ketone is a compound found within red raspberries that help give the succulent fruit its characteristic aroma, Oz explained.
OXPEKK is available in an amorphous form giving higher flexibility and a crystalline form which Velox says has better properties than other polyether ketones.
It is important to keep a close watch on ketone levels to be sure the diet is succeeding.
A urine ketone dipstick test, which is sensitive primarily to acetoacetate, is noninvasive, simple, fast, and inexpensive.
The catalytic activity of the complex with ligand A1 was considerably higher than that of the Sharpless complex that enables to get satisfactory conversions with all substrates already at -20[degrees]C and to reach preparatively acceptable isolated yields also for the less reactive ketone 7.
com/research/f9jrkd/chinese_markets) has announced the addition of the "Chinese Markets for Methyl Isobutyl Ketone (MIBK)" report to their offering.
22, 2015 /PRNewswire/ -- Polyether ether ketone (PEEK) is a versatile and high performance material and is behind many innovations in a broad range of industries and markets.