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Topic: 1,4 addition  (Read 2851 times)

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Offline Nemesisof99

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1,4 addition
« on: November 30, 2009, 11:43:44 AM »
When Buta-1,3 diene is treated with HBr, 1-4 addition takes place. Can you please explain why?
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Offline tmartin

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Re: 1,4 addition
« Reply #1 on: November 30, 2009, 12:29:26 PM »
I think the best way to answer this question is to think in terms of the mechanism here.  What would be the very first thing that happens (not the overall reaction, just one step of the mechanism) when you treat 1,3-butadiene with HBr (rr any acid, really)?

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