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Über Pterinchemie. 58. Mitteilung [1]. Sterische Eigenschaften von acylierten 5,6,7,8-Tetrahydropterinen. Rotameren von 5-Trifluoracetyl-tetrahydropterin-Derivaten

✍ Scribed by Rudolf Weber; Max Viscontini

Publisher
John Wiley and Sons
Year
1977
Tongue
German
Weight
392 KB
Volume
60
Category
Article
ISSN
0018-019X

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✦ Synopsis

Sterochemical Properties of the Acylated 5,6,7,8‐Tetrahydropterines. Rotameres of the 5‐Trifluoroacetyl‐tetrahydropterine Derivatives

6‐Methyl‐ and 6,7‐dimethyl‐5,6,7,8‐tetrahydropterine are acylated with the anhydrides of acetic acid and trifluoroacetic acid. It is shown that the reactivity of the nitrogen otoms increases in the following order: N(3), N(8), N(2′) and N(5). Two rotameres are present in the ^1^H‐NMR. spectra of the N(5)‐trifluoroacetates, but not in those of the N(5)‐acetates.

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