Phenylacetone (known also as phenyl-2-propanone, benzyl methyl ketone, or methyl benzyl ketone), is an organic compound. It is a clear oil with a refractive index of 1.5168. This substance is used in the manufacture of methamphetamine and amphetamine as a starting material or intermediate, where it is commonly known as P2P. Due to the illicit uses in clandestine chemistry, it was declared a schedule II controlled substance in the United States 11 February 1980.
Phenylacetone can also be produced from many other compounds. For example:
•phenylacetic acid is distilled with lead acetate or calcium acetate to yield phenylacetone.
•benzaldehyde is reacted with nitroethane yielding phenyl-2-nitropropene, which is reduced, usually in the presence of acid, to phenylacetone.
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