✦ LIBER ✦
Studien in der Lumiflavin-Reihe VII. Zur Kenntnis der 4-Desoxyflavine und der Struktur von Flavin-Metallchelaten
✍ Scribed by P. Bamberg; P. Hemmerich; H. Erlenmeyer
- Publisher
- John Wiley and Sons
- Year
- 1960
- Tongue
- German
- Weight
- 626 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The general instability of desoxy‐isoalloxazines has been confirmed by studying the formation and decomposition of 4‐phenyl‐4‐desoxy‐isoalloxazines and ‐alloxazines. It has been shown, that the former (4‐desoxy‐flavins) may be synthesized in the semiquinonoid radical state. These radicals react with O~2~ or H~2~O~2~ with fission of the 4‐substituents to give the analogous 4‐oxo‐compounds by a hydroperoxide rearrangement. In view of this instability, the oxinate like structure of flavin metal chelates may be excluded.