Homework Help: Chemistry Lab

Posted by Laura on Thursday, March 5, 2009 at 11:55pm.

Hi guys,
I thought it would be due to aromaticity breaking difficulty?

In the bromination reaction, why are the double bonds which are par t of the phenyl r ing not brominated?
A. We only added one equiv alent bromine.
B. T he phenyl r ing is aromatic and aromaticity is diffic ul t to break .
C. Because they are in a ring
D. Because they are too hindered

Chemistry Lab - DrBob222, Friday, March 6, 2009 at 12:06am
I think you are right. The aromatic ring has extra stability due to resonance.
Chemistry Lab - Dr Russ, Friday, March 6, 2009 at 3:37am
Yes B. I presume that the attempted bromination was carried out under addition reaction conditons?

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