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EEL - USP

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N<br />

R C O<br />

H<br />

CN<br />

H 2O<br />

H +<br />

N<br />

C<br />

2 carboxi quinolina<br />

O<br />

OH<br />

+<br />

R C<br />

aldeído<br />

O<br />

H<br />

+NH 3<br />

⎯ Como podemos sintetizar hexanal através da síntese de Reissert-<br />

Fischer?<br />

N<br />

quinolina<br />

N<br />

+ CN<br />

K<br />

C C C C C C<br />

C C C C C C O<br />

C C C C C C O<br />

N<br />

H<br />

CN<br />

H 2O<br />

H +<br />

N<br />

N<br />

H<br />

CN<br />

δ +<br />

2 carboxi quinolina<br />

O<br />

Cl<br />

+ Cl<br />

C<br />

O<br />

OH<br />

δ −<br />

+<br />

C<br />

C<br />

C<br />

C<br />

C<br />

C C C C C C<br />

hexanal<br />

Obs: A transformação do grupo “CN” no grupo C ocorre<br />

em meio a uma solução aquosa ácida (HCl).<br />

O<br />

OH<br />

O<br />

H<br />

N<br />

C<br />

Cl<br />

+ NH 3<br />

O<br />

H<br />

CN<br />

19

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