Synthesis of Schaefferals A and B, Unusual Phenylhydrazine Derivatives from Mushrooms of the Genus Agaricus
摘要:
在用苯胺和硝酸处理某些姬松茸的蘑菇伞后(Schaeffer's 交叉反应),Schaefferals 被确定为产生橙色至红色的发色剂。Schaefferals A 和 B 的结构已通过全合成得到证实。这种颜色反应可以解释为它们的醛基与苯胺发生反应,由此形成的偶氮甲基发生质子化反应,生成红色的脱位阳离子。
Synthesis of Schaefferals A and B, Unusual Phenylhydrazine Derivatives from Mushrooms of the Genus Agaricus
摘要:
在用苯胺和硝酸处理某些姬松茸的蘑菇伞后(Schaeffer's 交叉反应),Schaefferals 被确定为产生橙色至红色的发色剂。Schaefferals A 和 B 的结构已通过全合成得到证实。这种颜色反应可以解释为它们的醛基与苯胺发生反应,由此形成的偶氮甲基发生质子化反应,生成红色的脱位阳离子。
Schaefferals were identified as chromogens responsible for the development of an orange to red color after treating the caps of certain Agaricus species with aniline and nitric acid (Schaeffer’s cross reaction). The structures of schaefferals A and B were confirmed by total synthesis. The color reaction can be explained by reaction of their aldehyde group with aniline and protonation of the azomethine thus formed, yielding a red delocalized cation.
在用苯胺和硝酸处理某些姬松茸的蘑菇伞后(Schaeffer's 交叉反应),Schaefferals 被确定为产生橙色至红色的发色剂。Schaefferals A 和 B 的结构已通过全合成得到证实。这种颜色反应可以解释为它们的醛基与苯胺发生反应,由此形成的偶氮甲基发生质子化反应,生成红色的脱位阳离子。