**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
Über Pterinchemie. 59. Mitteilung [1]. Konformationsanalyse von acylierten 5,6,7,8-Tetrahydropterinen
✍ Scribed by Rudolf Weber; Max Viscontini
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- German
- Weight
- 217 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Conformational Analysis of Acylated 5,6,7,8‐Tetrahydropterines
The conformation of N(5)‐acetates, and of N(5)‐ and N(8)‐trifluoroacetates, respectively, of 6‐methyl‐ and cis‐6, 7‐dimethyl‐tetrahydropterines is studied by ^1^H‐NMR. spectroscopy. It is shown that the methyl group next to the acylated nitrogen atom is in quasi‐axial position.
📜 SIMILAR VOLUMES
## Gedenken (1
**The crystal structure of 5,6,7‐trimethyl‐5,6,7,8‐tetrahydropterine‐dihydrochloride‐monohydrate** The crystal structure of the title compound has been determined by X‐ray analysis (direct methods) and refined with 947 structure amplitudes to R = 0.026. The crystal system is orthorhombic, space gro
**The crystal structure of 5‐formyl‐6,7‐dimethyl‐5,6,7,8‐tetrahydropterine** The crystal structure of the title compound, a tetrahydropterine, has been determined by X‐ray analysis (direct method) and refined with 1579 structure amplitudes to R = 0.054. The crystal system is triclinic, space group
**Configuration and conformation of 6,7‐Dimethyl‐ and 5,6,7‐Trimethyl‐5,6,7,8‐tetrahydropterines.** During the hydrogenation of 6,7‐dimethylpterine, __cis__‐6,7‐dimethyl‐tetrahydropterine is formed. A possible conformation for this substance and for the 5,6,7‐trimethyl derivative, which is obtained