Use Br2, HCl, H2O and spearate resultant mix of isomers and products
"Stephan James Bird" <s...@lstephanbird.org.ukREMOVE> wrote in message
news:o1H1g.382043$gq3.10...@phobos.telenet-ops.be...
>
> Don't know about patents, but the 5-chloro seems to be readily available.
> See e.g.
> http://www.chemexper.com/index.shtml?main=http://www.chemexper.com/search/cas/635-21-2.html
>
> or
> http://www.chemexper.com/index.shtml?main=http://www.chemexper.com/search/cas/5794-88-7.html
> for the bromo.
>
> Stephan
>