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Vinyl Acetylene |
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Vinyl Acetylene
l-buten-3-yne (HC≡C—CH=CH2), the simplest unsaturated hydrocarbon containing double and triple carbon-carbon bonds. Colorless gas. Boiling point, 5.5° C; density at 0° C, 0.6867 g/cm3. Vinyl acetylene is obtained by dimerization of acetylene in the presence of copper salts in an ammonium chloride solution (50°-100° C): 2CH≡CH→CH≡C—CH=CH2 Vinyl acetylene is very reactive; the hydrogen atom of the terminal CH group can be replaced by a metal, a halogen (MgX, where X is a halogen), and so on. The most important reaction of vinyl acetylene is with HCl, yielding chloroprene, CH2=CCl—CH=CH2, which is used to make chloroprene rubbers. Vinyl acetylene oxidizes and polymerizes readily. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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