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Grignard's Reagent Reactions

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6. Give the reaction scheme, showing the products formed (before
hydrolysis), when one equivalent of ethylmagnesium bromide is treated
with one equivalent of 5-hydroxy-2-pentanone. Does addition of two :
equivalents of the Grignard reagent to this yield a different product(s)? If
so, give structure(s).

7. Explain why Grignard reagents cannot be prepared from an organic halide
that also contains a hydroxyl (-OH), a carboxyl (-COzH), a thiol (-SH), or
an amino (-NHz) group.

8. What would be the final product of the reaction between methyl benzoate
and two equivalents of ethylmagnesium bromide?

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Solution Summary

This solution uses the properties of a Grignard's reagent to determine the products of reactions and their equivalents.