| 1033722-92-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• CAS: 1033722-92-7
• 化学式: C₁₉H₁₈O₈
• 分子量: 374.347
• InChiKey: XGCZMXSSPMLUAA-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  malvidin 3-O-glucoside 以 乙醇 为溶剂， 生成 、
  参考文献：
  名称：

  New Compounds Obtained by Evolution and Oxidation of Malvidin 3-O-Glucoside in Ethanolic Medium

  摘要：

  Two new colorless phenolic compounds were formed from malvidin 3-O-glucoside incubated in an ethanolic solution. Their structures were characterized by means of one- and two-dimensional NMR analysis and through electrospray ionization-mass spectrometry. As compared to the structure of the initial anthocyanin skeleton, the first new compound showed the presence of two fused five-membered rings replacing the pyran ring and of a carbonyl function on the 2-position. The first five-membered ring was shown to result from the formation of a new linkage between the B ring 6'-position and the C ring 4-position, while the second was a dihydro furan ring with an oxygenated ether linkage between the 8a-position and the 37-position. The second isolated compound was shown to have similar structure with an ethyl ether moiety in the 3-position instead of the glucose moiety. A mechanism explaining the formation of the isolated compounds involving the passage through the chalcone form of the anthocyanin and an oxidation process is proposed.

  DOI：

  10.1021/jf8001872