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|Section2= |Section3= |Section7= |Section8= }} Diphenylacetylene is the chemical compound C6H5C≡CC6H5. The molecule consists of phenyl groups attached to both ends of an alkyne. It is a colorless crystalline material that is widely used as a building block in organic synthesis and as a ligand in organometallic chemistry. ==Preparation== Several preparations for this compound exist: * benzil is condensed with hydrazine to give the bis(hydrazone), which is oxidized with mercury oxide. * stilbene is brominated, then dehydrohalogenated, but the product can be contaminated with stilbene, which is difficult to remove.〔 * One method starts from iodobenzene and the copper salt of phenylacetylene in the Castro-Stephens coupling 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「diphenylacetylene」の詳細全文を読む スポンサード リンク
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