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Homework Help: Organic Chemistry Reaction

  1. Apr 11, 2010 #1
    1. The problem statement, all variables and given/known data
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    3. The attempt at a solution

    I'm confused on what is happening in this reaction, and where carbo-cations are being formed. Any help would be great. Thanks.
     
  2. jcsd
  3. Apr 11, 2010 #2
    What would you expect to happen in the first step, when HBr is added?
     
  4. Apr 12, 2010 #3
    Well The H would attack the double bonds and form the most stable carbo-cation?
     
  5. Apr 12, 2010 #4
    Correct. So what remains is determining whether the ends of each double bond are primary, secondary, or tertiary carbons to determine the relative stabilities of carbocations.

    Once you know where the hydrogen and bromine go, you move on to the second step, which is a nucleophilic substitution using methoxide ions.
     
  6. Apr 13, 2010 #5
    Thanks for the help, I understand the first step and where the bromine's attach to. What exactly is happening in the second step with the methoxide ions?
     
  7. Apr 13, 2010 #6
    Nucleophilic substitution.
     
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