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iodobenzene
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Iodobenzene is an organoiodine compound consisting of a benzene ring substituted with one iodine atom. It is useful as a synthetic intermediate in organic chemistry. It is a volatile colorless liquid, although aged samples appear yellowish.
==Preparation==
Iodobenzene is commercially available, but it can be prepared in the laboratory from aniline via the Sandmeyer reaction. In the first step, the amine functional group is diazotized with hydrochloric acid and sodium nitrite. Potassium iodide is added to the resultant phenyldiazonium chloride, causing nitrogen gas to evolve. The product is separated by steam distillation.〔
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Alternatively, it can be produced by refluxing iodine and nitric acid with benzene.〔
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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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