What Happens to Bromines in a Double Bond in Organic Chemistry?

AI Thread Summary
In the discussion about bromines in a double bond in organic chemistry, participants explore the fate of bromines when a double bond is broken. It is suggested that the double bond breaks, allowing hydrogen atoms to saturate the compound, resulting in cyclohexane. The bromines are thought to detach from the ring, potentially forming Br2. There is some debate over terminology, with one participant questioning whether this process should be termed "bond breaking." Ultimately, the consensus points towards the formation of cyclohexane as the expected product.
KristinaMr
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Homework Statement
if we have 1,2-dibromocyclohexene (double bond is between 1 and 2 carbon) and we add H2 over Pt, what is the final product?
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I think that the double bond would be broken in some way but what happens to the two bromines? do they remain in the ring? (or does HBr forms? is it possible?)
 
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KristinaMr said:
I think that the double bond would be broken in some way
In what way, precisely?
KristinaMr said:
what happens to the two bromines? do they remain in the ring? (or does HBr forms? is it possible?)
What do you think happens to them? Keep in mind that platinum is a really really good hydrogenation catalyst.
 
the double bond breaks because bromines are detached from the ring leaving a place for hydrogens ...so now we are left with a saturated cyclohexane. Is it correct? ...and the two bromines just form Br2 (?)
 
KristinaMr said:
the double bond breaks because bromines are detached from the ring leaving a place for hydrogens ...so now we are left with a saturated cyclohexane. Is it correct? ...and the two bromines just form Br2 (?)
Yes, the product I would expect to get is cyclohexane. I'm not sure I would call that bond breaking, though. Maybe it's a language difference.
 
thank you :thumbup:
 
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