phenylacetones

Phenylacetone, also known as benzyl methyl ketone or 1-phenylpropan-2-one, is an organic compound with the chemical formula C6H5CH2COCH3. It is a colorless to pale yellow oily liquid with a characteristic sweet, floral odor. Phenylacetone is a ketone and is structurally related to acetone and benzyl alcohol.

This compound is a precursor in the synthesis of various chemicals, including pharmaceuticals and fragrances. It can be synthesized through several chemical routes, such as the Friedel-Crafts acylation of benzene with chloroacetone or the oxidation of 1-phenylpropan-2-ol. Phenylacetone is also found in some natural sources, though typically in very small quantities.

Due to its use in the illicit synthesis of amphetamines and methamphetamines, phenylacetone is a controlled substance in many countries. Its distribution and possession are strictly regulated to prevent its diversion for illegal drug production. In legitimate industrial applications, it is used in the production of perfumery and as a chemical intermediate in organic synthesis.