51Թ

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alkene

[ al-keen ]

noun

Chemistry.
  1. any member of the alkene series.


alkene

/ ˈæ쾱ː /

noun

    1. Also calledolefineolefin any unsaturated aliphatic hydrocarbon with the general formula C n H 2n
    2. Also calledolefine ( as modifier )

      alkene series

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

alkene

/ ăŧ′ /

  1. Any of a group of unsaturated hydrocarbons that have carbon atoms in chains linked by one or more double bonds and that have the general formula C n H 2n . Lighter alkenes, such as ethylene, are derived from petroleum by cracking.
  2. Also called olefin
  3. ◆ The group of alkenes as a whole is called the alkene series or the ethylene series. Its first five members are ethylene (or ethene), propylene (or propene), butylene (or butene), pentene, and hexene.
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51Թ History and Origins

Origin of alkene1

First recorded in 1895–1900; alk(yl) + -ene
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Example Sentences

Examples have not been reviewed.

The attachment of the alkene produces a transient reactive species, which then reacts with the alkyl halide to form the new C–C bond.

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Both isomers of the alkene mixture are thus eventually consumed to make the same product.

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Such approaches would reduce the energy intensity of alkene production by a factor of 2 or 3, until membranes become good enough to replace distillation entirely.

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I started my independent research looking at alkene polymerization; in particular, the polymerization of norbornene into poly-norbornene, which is often used as a test substrate for catalysis.

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Background Transition metal–catalyzed alkene metathesis has revolutionized organic synthesis during the last two decades, even though the commonly used catalysts do not provide kinetic control over the stereochemistry of the newly formed double bonds.

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