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Organic Chemistry Nomenclature

  1. Jan 27, 2015 #1
    1. The problem statement, all variables and given/known data
    Provide an acceptable name for the alkane shown below.
    upload_2015-1-27_19-45-52.png

    2. Relevant equations

    N/A

    3. The attempt at a solution

    I never get these right but....my guess would be 2-dimethyl-5-butononane? My reasoning: the longest carbon chain has 9 carbons so the base name would be nonane, there are 2 methyl groups on carbon #2 and 1 butane group in carbon #5. I'm pretty sure this is not right but could someone please point out my mistakes and give me a method as to how to get it right? Thank in advance :)
     
  2. jcsd
  3. Jan 28, 2015 #2

    DrClaude

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    Staff: Mentor

    First, buto is not a proper name. Second, you have to account for the shape of that side chain.
     
  4. Jan 28, 2015 #3
    Ah yes, "buto" is definitely not a proper name. Also, I forgot to place the substituents in alphabetical order; Butyl should be written before dimethyl correct? I'm not sure what you mean by the "shape of the side chain". Is it that butyl group is in fact "iso-butyl"? Does this look better? 5-isobutyl-2-dimethylnonane
     
  5. Jan 28, 2015 #4

    DrClaude

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    Staff: Mentor

    Almost. Look up the possible butyl groups: http://en.wikipedia.org/wiki/Butyl
     
  6. Jan 28, 2015 #5
    O.k... 5-sec-butyl-2-dimethylnonane is the only other answer that kind of makes sense to me...beyond that I'd just be guessing :confused:. Thanks for the help.
     
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