2,4-Substituted flavins (isoalloxazines) bearing an NH2-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 behaviour of this new class of flavins is discussed.
发现在8位上带有NH 2基团的2,4-取代的黄素(异四恶嗪)稳定且易于获得。特别是2-和4-亚
氨基-。2,4-二亚
氨基化合物的颜色和荧光与
核黄素相似,但易溶于
水。讨论了这类新
黄酮的
化学行为。