Coloured Artefacts Formed by Oxidation of Benzene-1,2,4-triol and β-Dopa During the Extraction of Cortinarius violaceus (Agaricales) with Alcohols
作者:Franz von Nussbaum、Matthias Rüth、Peter Spiteller、Tina Hübscher-Weissert、Florian Löbermann、Kurt Polborn、Wolfgang Steglich
DOI:10.1002/ejoc.201101215
日期:2012.1
An array of colouredartefacts was formed upon extraction of the mushroom Cortinariusviolaceus with methanol. The structures of these pigments were determined by spectroscopic investigations, including NMR and mass spectrometric analyses. Cortiviolate A and dihydrocortiviol A arise by oxidative dimerization of benzene-1,2,4-triol, and cortiviolate B is formed by an unprecedented oxidative rearrangement
用甲醇提取蘑菇 Cortinarius violaceus 后形成了一系列有色人工制品。这些颜料的结构是通过光谱研究确定的,包括核磁共振和质谱分析。Cortiviolate A 和 dihydrocortiviol A 由苯-1,2,4-triol 的氧化二聚作用产生,cortiviolate B 由 β-多巴前所未有的氧化重排形成。氧化作用是由铁 (III) 离子引起的,从 (R)-β-多巴(蘑菇的天然紫色色素)的铁络合物中释放出来。在这些研究过程中,进行了皮质类固醇、二氢皮质类固醇 A、gomphilactone 和两种相关双内酯的合成。