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Nye Kemiske Horisonter - Danmarks Tekniske Universitet: Kemisk ...

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102<br />

HO<br />

HO<br />

O<br />

H 2N<br />

O<br />

Figur 11. Syntese af aspartam. Udgangsstofferne er de to aminosyrer asparaginsyre (venstre) og phenylalanin<br />

(højre).<br />

Industriel organisk kemi<br />

O<br />

HO<br />

O<br />

O<br />

NH2 O<br />

asparaginsyre<br />

O<br />

phenylalanin<br />

HN O<br />

O<br />

O<br />

O<br />

OH<br />

N<br />

O<br />

O<br />

H3C O CH3 eddikesyreanhydrid<br />

O O<br />

OH<br />

O O<br />

HO<br />

O<br />

O<br />

HN<br />

(S)<br />

O<br />

Cl<br />

beskyttelsesreagens<br />

H<br />

H<br />

N<br />

O<br />

aspartam<br />

(S)<br />

H<br />

N<br />

Pd, H 2<br />

O<br />

O<br />

OCH 3<br />

H 2N<br />

OCH 3<br />

NH 2<br />

CH 3OH, HCl<br />

H2N H<br />

NaOH<br />

O<br />

O<br />

O<br />

OH<br />

OCH 3<br />

OCH 3<br />

Cl

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