carbonyl group

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Related to carbonyl group: hydroxyl group, Alkoxy group

carbonyl group

A functional group with a carbon atom double-bonded to O2; the 2 remaining bonds are free to attach to other molecules.

Examples of carbonyl compounds
Aldehydes, amides, acyl halides, amides, carboxylic acids, esters, and ketones.

carbonyl group (kärˑ·b·nil grōōpˑ),

n a functional group in which a carbon atom is joined to an oxygen by a double bond; found in aldehydes and ketones.
References in periodicals archive ?
1] wavelength range, or by the absorption of oxidation products containing carbonyl groups in the 1700-1800 [cm.
1] absorption peak may be attributed to the hydrogen-bonded carbonyl groups in the blends (10).
1] belongs to the carbonyl group, as well as amide I and amide II bands at 1623 and 1580 [cm.
The presence of the carbonyl group leads to an abundant ion at m/z 181, which corresponds to the PFB group used for the PFB ester derivatization.
The susceptibility of the carbonyl group to nucleophilic attack is reduced by its attachment to electron-releasing alkyl groups that reduce the degree of positive charge on the carbon.
Chapter topics include alkylation and allylation adjacent to a carbonyl group, asymmetric alkylation or aminatin of allylic esters, Suzuki, Beck and Sonogashira coupling reactions, cross-coupling reactions, regioselective or asymmetric 1,2-addition to aldehydes, olefin metathesis reactions, cyclization reactions, asymmetric aldol and Michael reactions, and steroeselective hydroformylation, carbonylation and carboxylation reactions.
Taking into account the microstructures of these copolymers, the intermolecular hydrogen bond between the carbonyl group of MMA and the amide group of MAAM has a larger probability of occurring than the self-association through hydrogen bonding of pure PMAAM (15).
The modified elastomer must have a functional group that can interact with a carbonyl group such as maleic anhydride, phthalic anhydride, acrylic acid, maleic acid, itaconic acid, epoxy, or a glycidyl group.
Despite the presence of a carbonyl group, at 1,774 [cm.