arylketonen

Arylketonen is not a widely recognized chemical name for a specific compound. It may be a misspelling or a nonstandard term for aryl ketones, a class of compounds rather than a single substance. The following describes aryl ketones generally.

Aryl ketones are organic compounds featuring a ketone group (C=O) bonded to an aryl group on one side and a second substituent on the other. The general structure is Ar-CO-R, where Ar is an aryl ring and R is typically an alkyl or aryl group. If R were hydrogen, the compound would be an aryl aldehyde rather than a ketone.

Common examples include acetophenone (phenyl methyl ketone), propiophenone (phenyl ethyl ketone), and benzophenone (diphenyl ketone). These compounds illustrate the range of substituents that can flank the carbonyl.

Preparation often involves Friedel–Crafts acylation of arenes with acyl chlorides in the presence of a Lewis acid catalyst, such as acetyl chloride with benzene to give acetophenone or benzoyl chloride with benzene to give benzophenone. Other routes include oxidation of secondary aryl alcohols and various cross-coupling methods that form the Ar-CO-R framework.

Uses of aryl ketones span solvents, fragrance and flavor industry intermediates, and pharmaceutical synthesis. Some aryl ketones or their derivatives, notably benzophenone, serve as UV absorbers in plastics and cosmetics.

Safety and environmental information is substance-specific but aryl ketones are generally of low to moderate toxicity and may pose typical chemical hazards such as irritation or flammability. Proper handling, storage, and disposal according to local regulations are advised.