Re: ORGLIST: Imidazothiadoazole carboxylates

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From: Maringanti Krishna (maringanti9$##$yahoo.com)
Date: Wed Sep 14 2005 - 11:27:42 EDT


Try degassing your reaction mixture with Argon gas (3
freeze pump and thaw cycles).
you will get better yield.
Krishna

--- Basu Yallur <yallur_bc$##$yahoo.com> wrote:

> Hello You all.
> In the preparation of
> Imidazo[2,1-b][1,3,4]thiadiazole-5-carboxylates from
> aminothiadiazole and ethyl chloroacetoacetoacetate,
> yield is very much low, almost we end up with
> starting materials. Anybody please ..............
> I will be thankful with any help.
>
>
>
>
>
> Yallur.B.C
> Research Scholor
> P.G Dept of Chemistry Dept
> Karnatak University
> Dharwad-03
>
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