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Naming compounds.... (v. easy)

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    I'm probs being v. stupid somewhere

    I thought it would be dimethyl butan-1-ol

    If you label the carbon joined to the –OH as 1 and then 2, 3 as you come right?


    But it's butan-2-ol.... whyy ? :/

    thanks a lot!
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    (Original post by Jasmine_777)
    If you label the carbon joined to the –OH as 1 and then 2, 3 as you come right?
    You label chains from one end to the other, so the carbon attached to the OH is either 2 or 3.

    But it's butan-2-ol.... whyy ? :/

    thanks a lot!
    Longest chain is four carbons and the OH is on carbon 2 or 3 - and you use the lowest number possible
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    (Original post by EierVonSatan)
    You label chains from one end to the other, so the carbon attached to the OH is either 2 or 3.



    Longest chain is four carbons and the OH is on carbon 2 or 3 - and you use the lowest number possible
    It looks like it should be 2 methyl butan-2-ol to me, or when drawing it out just from the name butan 2 ol you would miss a methyl group
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    (Original post by alex5455)
    It looks like it should be 2 methyl butan-2-ol to me, or when drawing it out just from the name butan 2 ol you would miss a methyl group
    Agreed it is 2-methylbutan-2-ol
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    (Original post by alex5455)
    It looks like it should be 2 methyl butan-2-ol to me, or when drawing it out just from the name butan 2 ol you would miss a methyl group
    :yep: I was just saying why the root of the name is butan-2-ol not butan-1-ol
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    (Original post by EierVonSatan)
    You label chains from one end to the other, so the carbon attached to the OH is either 2 or 3.



    Longest chain is four carbons and the OH is on carbon 2 or 3 - and you use the lowest number possible
    PRSOM.

    Thank you! Losing all my AS knowledge. Sigh.

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Updated: June 11, 2012
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