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Alkohole - Chempage.de

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Organische Chemie I 1711.2003<br />

Alkoholsynthese<br />

Durch nucleophile Substitution<br />

+ -<br />

H 3<br />

C Br Na OH CH 3<br />

OH NaBr<br />

+<br />

+<br />

CH 3<br />

O<br />

CH 3<br />

O<br />

HO<br />

CH 3<br />

Br<br />

NaOH, H 2<br />

O<br />

Pyridin<br />

S N<br />

2<br />

HO<br />

CH 3<br />

OH<br />

nicht S N<br />

1: Kation<br />

<strong>de</strong>stabilisiert<br />

Pyridin:<br />

N<br />

Reduktion von Carbonylverbindung<br />

R +2<br />

C<br />

R<br />

R<br />

H<br />

O<br />

Reduktion<br />

Oxidation<br />

Oxidationszahl<br />

+1<br />

C<br />

O<br />

Al<strong>de</strong>hy<strong>de</strong><br />

Reduktion<br />

Oxidation<br />

R<br />

H<br />

C<br />

0<br />

O<br />

H<br />

R<br />

sekundärer Alkohol<br />

R<br />

H<br />

C<br />

-1<br />

O<br />

H<br />

H<br />

primärer Alkohol<br />

Oxidationszahl<br />

H-H<br />

H 2<br />

R'<br />

H<br />

Katalysator<br />

H<br />

H H<br />

C O<br />

R C O<br />

H<br />

Pd-C<br />

Pt R'<br />

PtO 2<br />

Seite 3 von 5

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