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EEL - USP

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⎯ Identifique a cetona formada na reação do cloreto de acetila com<br />

cloreto de propil magnésio, dissolvido em éter.<br />

C C<br />

C C<br />

O<br />

Cl<br />

O MgCl<br />

C<br />

C<br />

C<br />

+ Mg Cl<br />

C<br />

C<br />

C<br />

C C<br />

O Mg Cl<br />

+ Cl Mg Cl 2 + C C C C C<br />

C<br />

C<br />

C<br />

O<br />

Cl<br />

Pentanona 2<br />

C C<br />

O Mg Cl<br />

C<br />

C<br />

C<br />

+ Cl<br />

Obs: Se utilizarmos excesso do composto de Grignard e fizermos<br />

a hidrólise do composto obtido, formar-se-á um ácool terciário.<br />

C<br />

O O Mg Cl<br />

C + Mg Cl<br />

C<br />

C<br />

C<br />

C<br />

C<br />

C<br />

C C C C<br />

C<br />

C<br />

C<br />

δ −<br />

δ +<br />

C + H O H<br />

37

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