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EEL - USP

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C<br />

mecanismo:<br />

O<br />

O<br />

CH 3<br />

+ HO O<br />

O<br />

C<br />

O<br />

O<br />

C<br />

CH 3<br />

C<br />

O<br />

OH<br />

+<br />

H 3C C<br />

O<br />

O<br />

O<br />

C<br />

O<br />

1º<br />

O<br />

C<br />

O<br />

H<br />

β<br />

CH 3<br />

CH 3<br />

O C<br />

Moura Campos sugere para o mesmo procedimento, o seguinte<br />

R C CH 3 + H +<br />

R C<br />

Ph<br />

OH<br />

CH 3<br />

C<br />

O O<br />

H<br />

O<br />

O<br />

OH<br />

R C CH 3 + HO<br />

O<br />

C<br />

OH<br />

+ H 3C C<br />

R<br />

O<br />

O C<br />

OH<br />

B<br />

Ph HB + R C<br />

CH 3<br />

OH<br />

O H 3C C<br />

OH<br />

Ph R C<br />

CH 3<br />

O O C<br />

O R<br />

O<br />

O<br />

O<br />

H<br />

O C<br />

O<br />

Ph<br />

Ph<br />

65

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