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phenylacetylene : ウィキペディア英語版 | phenylacetylene
|Section2= }} Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless, viscous liquid. In research, it is sometimes used as an analog for acetylene; being a liquid, it is easier to handle than acetylene gas. ==Preparation== In the laboratory, phenylacetylene can be prepared by elimination of hydrogen bromide from styrene dibromide using sodium amide in ammonia: :350px It can also be prepared by the elimination of hydrogen bromide from bromostyrene using molten potassium hydroxide.
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