diketone


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di·ke·tone

(dī-kē'tōn),
A molecule containing two carbonyl groups, for example, acetylacetone (CH3COCH2COCH3).

di·ke·tone

(dī-kē'tōn)
A molecule containing two carbonyl groups; e.g., acetylacetone.
References in periodicals archive ?
CUR has been widely investigated as an important role in the pharmacological activities because of its low toxicity, low adverse reactions, and special structure (hydroxyl groups of the benzene rings, the double bonds in the alkene part, and the diketone moiety).
"The two major diketone plants--which is the raw material of intermediates of yellow pigments (AAOA, AAA and AAOT) have stopped due to exploration and environmental issues.
A mixture of the dialdehyde 1 (1 mmol) and the diketone 2 (1mmol) was dissolved in a KOH solution (10%, 75 mL) in MeOH-[H.sub.2]O (3 : 1) and the mixture was stirred at room temperature.
Because diacetyl and 2,3-pentanedione, both diketones, are chemically very similar, Morgan suspected that inhaled 2,3-pentanedione may be toxic to the respiratory tract as well.
pyrone type, chromene, diketone, or quinone groups) and delocalised [pi]-electrons of the basal planes are assumed to have a basic nature (Contescu et al.
2-Bromo-benzaldelhyde was reacted with diketone 8 to form an imidazole.
The switch between diphenol (or hydroquinone) and diketone (or quinone) occurs easily through oxidation and reduction reactions.
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Another component identified from the Singha extract was a substituted diketone. This material typically is found in flavor and fragrance essences.
Greg Casey, of Anheuser-Busch's corporate research and development, used Cadoe to determine the influence of wort amino acid levels on vicinal diketone (VDK) production in lager fermentations.
Accordingly, in presence of acetic acid, indole adds to diketone ester A to form indolylcarbinols 3 through the Friedel-Crafts reaction.
employed a tandem [C.sub.8f]-[C.sub.1] and [C.sub.1]-[N.sub.2] bond- forming process with azidoacrylate 11 and asymmetric diazo diketone 12 (Scheme 4) to obtain a 1: 1 ratio of 7-fluoroisoquinoline isomers 13a and 13b in good yield [27].