From: Dr. D.Basavaiah-(RS) (dbscrs$##$uohyd.ernet.in)
Date: Mon Jun 05 2000 - 12:51:23 EDT
Dear Jack:
You may even try this reference:
Basavaiah et.al Tetrahedron 54(1998) 4943-4948.
krish
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On Sat, 3 Jun 2000, Faiz Ahmed Khan wrote:
> Dear Jack,
> By varying the 'catalyst cocktail' you can get either 3-arylpropanal or beta-aryl
> allyl alcohol (normal Heck product). For example, additives such as silver(I) or
> thallium (I) salts give the latter product predominantly. The following review will
> be helpful:
> A. de Meijere, F.E. Meyer, Angew. Chem. Int. Ed. Engl. 1994, 33, 2379-2411.
> (see page: 2382)
> good luck,
> F.A. Khan
>
> Jack Sullivan wrote:
>
> > Pd-catalyzed addition of ArX (X= Br, I) is known to result in mixtures of
> > regioisomers when olefins are used that contain electrron-donating substituents.
> > My project involves the reaction of these halides with allyl alcohol to give
> > 3-arylpropanals. Is anyone familiar with any recent references on varying the
> > reaction conditions (halide, catalyst, etc) to minimize or eliminate this side
> > product formation? Thank you in advance!
> > --
> > Jack Sullivan
> >
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