𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Kristallisiertes Betanin. Vorläufige Mitteilung

✍ Scribed by H. Wyler; A. S. Dreiding

Publisher
John Wiley and Sons
Year
1957
Tongue
German
Weight
124 KB
Volume
40
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Zur Konstitution des Randenfarbstoffes B
Zur Konstitution des Randenfarbstoffes Betanin. 2. (vorläufige) Mitteilung
✍ H. Wyler; G. Vincenti; M. Mercier; G. Sassu; André S. Dreiding 📂 Article 📅 1959 🏛 John Wiley and Sons 🌐 German ⚖ 192 KB 👁 1 views

## Abstract An empirical formula (C~24~H~28–30~O~13~N~2~) and certain structural features of betanin are reported. In the beet betanin is accompanied by three related violet compounds.

Abbauprodukte des Betanidins. 4. (vorläu
Abbauprodukte des Betanidins. 4. (vorläufige) Mitteilung. Über die Konstitution des Randenfarbstoffes Betanin
✍ H. Wyler; André S. Dreiding 📂 Article 📅 1962 🏛 John Wiley and Sons 🌐 German ⚖ 193 KB 👁 1 views

## Abstract By degrading betanidin with alkali under exclusion of oxygen it was possible to demonstrate the formation of 4‐methylpyridine‐2, 6‐dicarboxylic acid (II), 2, 3‐dihydro‐5, 6‐dihydroxyindole‐2‐carboxylic acid (IV) and formic acid. Compounds II and IV were also found after a treatment with

Die Struktur des Neobetanidins. 5. (vorl
Die Struktur des Neobetanidins. 5. (vorläufige) Mitteilung. Über die Konstitution des Randenfarbstoffes Betanin
✍ T. J. Mabry; H. Wyler; G. Sassu; M. Mercier; I. Parikh; André S. Dreiding 📂 Article 📅 1962 🏛 John Wiley and Sons 🌐 German ⚖ 466 KB 👁 1 views

## Abstract __Betanin__, the violet‐red pigment of the beet, and its aglucone, __betanidin__, were converted by mild methods to several derivatives of a new structure, called __neobetanidin__. On the basis of elementary analyses, transformations, color changes with acid, mass‐spectrographic evidenc

Zur Struktur des Betanidins. 6. (vorläuf
Zur Struktur des Betanidins. 6. (vorläufige) Mitteilung. Über die Konstitution des Randenfarbstoffes Betanin
✍ H. Wyler; T. J. Mabry; Andre S. Dreiding 📂 Article 📅 1963 🏛 John Wiley and Sons 🌐 German ⚖ 268 KB 👁 1 views

## Abstract A choice between structures I and III for betanidin is now possible in favour of I on the basis of the formation of a well‐characterized di‐O‐acetylderivative (II). The instability of betanidin and its ready transformation into other products at elevated pH's are shown to be due to its