• Question: how do you make double bond

    Asked by Ifeoluwa.A to Anne, Arthur, Rose, Ruhina, Thomas on 18 Jun 2015.
    • Photo: Rose Simnett

      Rose Simnett answered on 18 Jun 2015:

      Hi, There are many different ways to make a double bond and it depends on what your starting material is and what double bond you are wanting to make.

      If you have an alcohol you can do whats called a dehydration and this will give you a carbon-carbon double bond.
      You can also make double bonds between carbon and oxygen. This is called a carbonyl bond. You can make a carbonly from an alcohol too by doing an oxidation reaction.

    • Photo: Ruhina Miller

      Ruhina Miller answered on 19 Jun 2015:

      For alkene’s in particular you can start with an alkyne an use a catalyst so you have cis-/trans- directionality, eliminate an alkyl halide or alcohol, or dehydrogenate at high temperatures with a catalyst – but the last one normally causes a mixture of products

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