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Geminal halide hydrolysis
Geminal halide hydrolysis is an organic reaction. The reactants are a geminal dihalide and water or a hydroxide. The reaction product is a ketone or an aldehyde. The first part of the reaction mechanism consists of an ordinary nucleophilic aliphatic substitution to produce a ''gem''-halohydrin. The remaining halide is a good leaving group and this enables the newly created hydroxy group to revert to a carbonyl group expelling the halide. Geminal trihalides (e.g. benzotrichloride) are first hydrolized to acid halides (e.g. benzoyl chloride) in a similar way and further to carboxylic acids. Similar reactions involving any strong electronegative functional group, such as a nitrile, in place of the halide also occur.
== External links==
* Benzophenone synthesis from benzene through benzophenone dichloride in Organic Syntheses Coll. Vol. 1, p.95; Vol. 8, p.26 (Article )
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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