From: A De (ocad$##$mahendra.iacs.res.in)
Date: Wed Sep 15 1999 - 05:02:38 EDT
Calcutta, 15 September 1999
You have already received some suggestions which should help you in
overcoming difficulties. I would add one more . You may add catalytic
amount of AIBN or dibenzoyl peroxide before adding NBS. You may irradiate
the mixture with a 200 W tungsten lamp.
Asish De
On Tue, 14 Sep 1999, priya joshi wrote:
>
> Hello
> I am Priya Joshi, a Ph.D student. I am having difficulty in bromination of
> Methyl-2,4-dimethoxyphenylacetate. I want the bromination at the alpha
> position (i.e. at benzylic position).But when I tried NBS, bromination
> occurred at the Benzene ring.
>
> Does anybody know How to bring about benzylic bromination without ring
> bromination.
>
> Thanks
>
> Priya Joshi
>
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