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E2 reaction on dihalides

  1. Jan 24, 2012 #1
    1. The problem statement, all variables and given/known data

    3,4-dibromo-2,5-dimethylhexane treated with excess k t-butoxide will form an alkyne and diene. The IR spectra shows bands at 3010,2995,2980,1610,1450,1380 and 1050 cm^-1.

    What are the predicted products? Which one actually formed? Why?

    2. Relevant equations

    3. The attempt at a solution

    My products are 2,5-dimethyl-3-hexyne and a conjugated diene. Are my products correct?

    Also, which product is formed? I searched online and it says the alkyne will form, but from the IR spectra, the diene formed?
    Last edited: Jan 24, 2012
  2. jcsd
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