In this picture you see that when you break the double bond the Br isn't anti. Why is that ?

asked by @irenep2 • almost 2 years ago • Organic Chemistry • 5 pts

halogenation

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1 answer

Hey, Irene!

The bromines are actually anti in both problems! Notice that if you rotate the molecule to look like a cis double bond, the bromines have opposite wedge/dash information. Rotation across an axis will reverse the wedge/dash information. I'd recommend using models to see how this actually works :) Let me know if you have any other questions!

answered by @jonathan • almost 2 years ago