𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Über Pterinchemie. 74. Mitteilung. Zum Verlauf der katalytischen Reduktion von 6-Methylpterin

✍ Scribed by Abhoy N. Ganguly; Pradip K. Sengupta; Jost H. Bieri; Max Viscontini

Publisher
John Wiley and Sons
Year
1980
Tongue
German
Weight
228 KB
Volume
63
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

On the Pathway of the Catalytic Reduction of 6‐Methylpterin

The catalytic hydrogenation of 6‐methylpterin (I) in neutral or weekly acidic solution begins, as for the 7‐methylpterin, by the thermodynamically controlled reduction of the 7,8‐double bond. It is not possible to say, according to our experiments, which double bound, either the 5,6 or the 7,8, is first reduced in strongly acidic solution. However, a 5,8‐reduction can be excluded.

📜 SIMILAR VOLUMES

Über Pterinchemie. 73. Mitteilung [1]. Z
Über Pterinchemie. 73. Mitteilung [1]. Zum Verlauf der katalytischen Reduktion von 7-Methylpterin
✍ Abhoy N. Ganguly; Pradip K. Sengupta; Jost H. Bieri; Max Viscontini 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 German ⚖ 335 KB

**On the Pathway of the Catalytic Reduction of 7‐Methylpterin** The catalytic hydrogenation of 7‐methylpterin (VII) in a neutral solution occurs first by the reduction of the 7,8‐double bond (thermodynamically‐controlled reaction) followed by the reduction of the 5,6‐double bond. On the contrary, i

Über Pterinchemie 67. Mitteilung Zum Ver
Über Pterinchemie 67. Mitteilung Zum Verlauf der katalytischen Reduktion von 6, 7-Diphenylpterin
✍ Symeon Antoulas; Jost H. Bieri; Max Viscontini 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 German ⚖ 162 KB

**On the pathway of the catalytic reduction of 6,7‐diphenylpterin** The pathway of the hydrogen addition to the pyrazine ring of 6, 7‐diphenylpterin (**1a**) during acid‐catalyzed reduction was elucidated. Initial hydrogenation of the 5, 6‐double bond produces 6, 7‐diphenyl‐5, 6‐dihydropterin (**2a

Über Pterinchemie. 35. Mitteilung [1]. H
Über Pterinchemie. 35. Mitteilung [1]. Herstellung von 6-aminomethyl-6-methyl-5,6,7,8-tetrahydropterin, ein Beitrag zur frage der Existenz von parachinoid-dihydropterinen
✍ M. Viscontini; M. Frater-Schroeder; M. Argentini 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 German ⚖ 372 KB 👁 1 views

## Abstract Die erste Synthese eines 6, 6‐disubstituierten Tetrahydropterins, nämlich des 6‐Aminomethyl‐6‐methyl‐5, 6, 7, 8‐tetrahydropterins, wird beschrieben: Das durch Anlagerung von Blausäure an 6‐Methyl‐7, 8‐dihydropterin entstandene 6‐Cyano‐6‐methyl‐5, 6, 7, 8‐tetrahydropterin wird acetyliert