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Propiophenone : ウィキペディア英語版 | Propiophenone
|Section2= |Section7= |Section8= }} Propiophenone is an aryl ketone. It is a colorless, sweet-smelling liquid that is insoluble in water, but miscible with organic solvents. It is used in the preparation of other compounds. ==Production== Propiophenone can be prepared by Friedel-Crafts reaction of propionic acid and benzene. It is also prepared commercially by ketonization of benzoic acid and propionic acid over calcium acetate and alumina at 450—550 °C: :C6H5CO2H + CH3CH2CO2H → C6H5C(O)CH2CH3 + CO2 + H2O Ludwig Claisen discovered that α-Methoxystyrene forms this compound when heated for an hour at 300°C (65% yield).
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