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Acetophenone
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==Production== Acetophenone is formed as a byproduct of the [[cumene process]], the industrial route for the synthesis of [[phenol]] and [[acetone]]. In the Hock rearrangement of [[isopropylbenzene hydroperoxide]], migration of a methyl group rather than the phenyl group gives acetophenone and methanol as a result of an alternate [[rearrangement reaction|rearrangement]] of the intermediate: :{{chem2 | C6H5C(CH3)2O2H -> C6H5C(O)CH3 + CH3OH }} The cumene process is conducted on such a large scale that even the small amount of acetophenone by-product can be recovered in commercially useful quantities.<ref name=Ullmann/> Acetophenone is also generated from [[ethylbenzene hydroperoxide]]. Ethylbenzene hydroperoxide is primarily converted to [[1-phenylethanol]] (Ξ±-methylbenzyl alcohol) in the process with a small amount of by-product acetophenone. Acetophenone is recovered or hydrogenated to 1-phenylethanol which is then dehydrated to produce styrene.<ref name=Ullmann/>
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