Von den Naturst'offen, die Strukturen aufweisen, von denen die Fahigkeit zur komplexen Bindung von Netallionen bekannt ist, ist das Riboflavin, das die fiir das Oxin charaktsristische Chelatgruppe besitzt, von besonderem Interessel) 2 ) . Es darf nach H . R. Mahler e,t al. 3, vermutet werden, dass b
Synthesen in der Lumiflavinreihe II
✍ Scribed by P. Hemmerich; H. Erlenmeyer
- Publisher
- John Wiley and Sons
- Year
- 1957
- Tongue
- German
- Weight
- 485 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Starting from lumiflavine and its 2‐thio‐analogue, the leukoflavine nucleus was obtained and stabilized by reductive acylation. The acyl‐leuko‐compounds seem to exhibit the possibility of substitution reactions in 2‐ and 4‐positions. Several new lumiflavines were obtained, e. g. 4‐thiolumiflavine and 2‐desoxylumiflavine. The latter shows rather peculiar oxido‐reductive properties which are discussed.
📜 SIMILAR VOLUMES
## Abstract 2,4‐Substituted flavins (isoalloxazines) bearing an NH~2~‐group in 8‐position were found to be stable and easily accessible. In particular the 2‐ and 4‐imino‐, resp. 2,4‐diimino‐compounds are similar to riboflavin in colour and fluorescence, but readily water‐soluble. The chemical behav
Die weitere Bearbeitung dieser hydrierten Akaloide, so wie der katalytischen Reduktion der X a n t h i n -B s s e n ist von uns hi Angriff genonunen , iind wir bebalten uns daher ausfuhrlichere Mitteilungen suf diesem Gebiete yor. ## 876. J. v. Braun: Syntheeen in der fettaromatieohen Reihe. II. (