In addition to the Fries rearrangement and their namesake pyrolysis, molecules with two of their functional group can react intramolecularly to form cyclic ketones, and these molecules are commonly created by another reaction that involves an alcohol and carboxylic acid with acid catalysis.
Phenyl versions of these form acylium ions in a rearrangement catalyzed by Lewis acids, a reaction that can also occur via photochemical excitation, while an example of another reaction involving them uses high heat to create acrylic acid. In addition to the Fries rearrangement and their namesake pyrolysis, molecules with two of their functional group can react intramolecularly to form cyclic ketones, and these molecules are commonly created by another reaction that involves an alcohol and carboxylic acid with acid catalysis. Involved in reactions named for Dieckmann and Fischer, this is, for 10 points, what class of molecules that contains a carbonyl group adjacent to an oxygen atom bound to a carbon atom and known for their odors?
Phenyl versions of these form acylium ions in a rearrangement catalyzed by Lewis acids, a reaction that can also occur via photochemical excitation, while an example of another reaction involving them uses high heat to create acrylic acid.
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