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EEL - USP

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H<br />

H 3C C C N R + H +<br />

OH<br />

H<br />

B<br />

H 2<br />

H<br />

H3C C C N R<br />

H<br />

H2 H H H2H H3C C C N R H3C C C N R + HB<br />

OH<br />

R C<br />

H<br />

Com aminas secundárias<br />

NR 2 + H +<br />

Δ<br />

H 3C C<br />

OH 2<br />

H2C C<br />

H<br />

NR2 H2C C<br />

H<br />

NR2 H<br />

enamina<br />

H C<br />

OH<br />

H C<br />

H<br />

B<br />

* Reação de Mannich<br />

OH 2<br />

"Base de Schiff"<br />

N R 2<br />

Faz a reação de uma amina primária com o formol / H<br />

O<br />

H<br />

H<br />

+ N<br />

H<br />

R2 H C NR2 H<br />

NR 2 + H H C NR 2<br />

H<br />

OH 2<br />

O<br />

H<br />

B<br />

H 2O<br />

H 2C NR 2<br />

pode ser<br />

neutralizado<br />

OH<br />

C NR 2<br />

H<br />

157

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