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・ Diphenhydramine
・ Diphenidine
・ Diphenidol
・ Diphenol
・ Diphenolic acid
・ Diphenoxylate
・ Diphenyl carbonate
・ Diphenyl diselenide
・ Diphenyl disulfide
・ Diphenyl ditelluride
・ Diphenyl ether
・ Diphenyl oxalate
・ Diphenyl sulfone
・ Diphenyl-2-pyridylmethane
・ Diphenyl-2-pyridylphosphine
Diphenylacetylene
・ Diphenylalanine
・ Diphenylamine
・ Diphenylamine (data page)
・ Diphenylbutylpiperidine
・ Diphenylchlorarsine
・ Diphenylcyanoarsine
・ Diphenylcyclopropenone
・ Diphenyldichloromethane
・ Diphenylethylenediamine
・ Diphenylhexatriene
・ Diphenylketene
・ Diphenylmercury
・ Diphenylmethane
・ Diphenylmethanol


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Diphenylacetylene : ウィキペディア英語版
Diphenylacetylene

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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)
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