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Questions Chiral centers,Markonikov's rule

  1. Apr 29, 2008 #1
    I put all of my questions/solutions in the attached file...could someone please check over them before 7:00 am to see if I have them correct? Thanks in advance!!!
     

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    Last edited: Apr 29, 2008
  2. jcsd
  3. Apr 29, 2008 #2
    Question 1:
    part c) H2S is a product, not a reactant.
    part d) You're missing a chiral center. The 4-position Carbon is chiral for the elimination products. It's not quite symmetrical.

    bonus looks correct!!
     
  4. Apr 30, 2008 #3

    chemisttree

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    Bonus is wrong. There are 2 chiral centers and neither is near enough to the amine to cause racemization. The amine is not a chiral center.

    3- and 4-vinylcyclohexanethiol each have 2 chiral centers.

    e) is wrong since Br2 adds anti to double bonds, not randomly. You need to make models to see it maybe.
     
    Last edited: Apr 30, 2008
  5. May 1, 2008 #4

    chemisttree

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    I hate it when I rush through these questions!!!! I'm wrong, of course. You were correct in your answer that there is only one chiral center. That said, the amine is certainly not a chiral center and is not reactive with the chiral alcohol.

    Arrrrgggghhhh! I did it again here! There are 2 chiral centers on the 3-vinyl compounds and only 1 for the 4-vinyl compounds.

    Got that one right.
     
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