organic chemistry

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Some biphenyl (C6H5-C6H5) is produced as a by-product in the synthesis of benzoic acid. Where does it come from? This question has to deal with the Grignard reaction.

Can anyone help me with this please?

  • organic chemistry -

    This may be close, although not exactly, what you are looking for.
    http://en.wikipedia.org/wiki/Wurtz_reaction

  • organic chemistry -

    Mg (s) + 2C6H5-Br (l) = C6H5-C6H5 + Br-Mg-Br

    Mg + C6H5-Br = C6H5-Br-Mg
    C6H5-Br-Mg = Grignard

    C6H5-C6H5 is a by-product from synthesis of reagenset

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