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Topic: Nitration of 4-brombiphenyl  (Read 3788 times)

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Offline THC

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Nitration of 4-brombiphenyl
« on: March 05, 2008, 04:25:55 PM »
Q: At what position and on which ring would you expect nitration of 4-brombiphenyl to occur?
4-brombiphenyl: Ar-Ar-Br (Ar and Br in p-position)

A: I expect -NO2 to sit in o-position to the phenyl group on the benzene ring with Br (meta position to Br).

Yes/no/maybe?

Offline agrobert

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Re: Nitration of 4-brombiphenyl
« Reply #1 on: March 05, 2008, 09:07:17 PM »
Thats what I think as well.  What about further nitration on the para biphenyl positon?
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

Offline THC

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Re: Nitration of 4-brombiphenyl
« Reply #2 on: March 06, 2008, 01:04:00 AM »
Thats what I think as well.  What about further nitration on the para biphenyl positon?

The -NO2 would sit on the other side, still on the same ring and in the same position (o-position to phenyl). So the name is 2,6-dinitro-4-brombiphenyl or 1-brom-3,5-dinitro-4-phenylbenzene.

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