Acetic acid 7,10-dimethoxy-3,8-dimethyl-1-oxo-1H-benzo[g]isochromen-9-yl ester | 100667-51-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 萘并吡喃类
• 英文名称: Acetic acid 7,10-dimethoxy-3,8-dimethyl-1-oxo-1H-benzo[g]isochromen-9-yl ester
• CAS: 100667-51-4
• 化学式: C₁₉H₁₈O₆
• 分子量: 342.348
• InChiKey: UJHYJEAOVYMZNE-UHFFFAOYSA-N

物化性质

• 沸点：
  535.5±50.0 °C(Predicted)
• 密度：
  1.262±0.06 g/cm3(Predicted)

反应信息

• 作为产物：
  描述：

  8-methyltoralactone 10-methylether 在 三氯化铝 作用下， 以 吡啶 、 乙醚 为溶剂， 反应 8.0h， 生成 Acetic acid 7,10-dimethoxy-3,8-dimethyl-1-oxo-1H-benzo[g]isochromen-9-yl ester
  参考文献：
  名称：

  Studies on the constituents of the roots of Cassia torosa. I. The structures of two new naphthalenic lactones.

  摘要：

  Two new naphtho-α-pyrones, 8-methyltoralactone (1) and 8-methyltoralactone 10-methylether (2), were isolated from the roots of Cassia torosa CAV. along with chrysophanol, chrysophanol-10, 10'-bianthrone, physcion, physcion-9-anthrone, emodin and phytosterols (a mixture of stigmasterol, campesterol, and sitosterol). The structures of the two new compounds 1 and 2 were established as 9, 10-dihydroxy-7-methoxy-3, 8-dimethyl-1H-naphtho [2, 3-c] pyran-1-one and 9-hydroxy-7, 10-dimethoxy-3, 8-dimethyl-1H-naphtho [2, 3-c] pyran-1-one, respectively, on the basis of spectral and chemical evidence.

  DOI：

  10.1248/cpb.33.4912