(-)-6-(3-chloro-2-hydroxy-3-methylbutyl)-5,7-dimethoxycoumarin | 143492-68-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: (-)-6-(3-chloro-2-hydroxy-3-methylbutyl)-5,7-dimethoxycoumarin
• 英文别名: 6-[(2S)-3-chloro-2-hydroxy-3-methylbutyl]-5,7-dimethoxychromen-2-one
• CAS: 143492-68-6
• 化学式: C₁₆H₁₉ClO₅
• 分子量: 326.777
• InChiKey: JDYJPQNEOXWJQN-ZDUSSCGKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  65
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  毛两面针素 在 吡啶 、 盐酸 、 三乙胺 作用下， 以 乙醚 、 二氯甲烷 为溶剂， 反应 504.25h， 生成 (-)-6-(3-chloro-2-hydroxy-3-methylbutyl)-5,7-dimethoxycoumarin
  参考文献：
  名称：

  The absolute stereochemistries of (+)-toddalolactone and its related chiral coumarins from Toddalia asiatica(L.) Lam. (T. aculeata Pers.) and their optical purities

  摘要：

  The absolute stereochemistries of (+)-toddalolactone (+)-1 and its related chiral coumarins [(+)-toddanol (+)-2, (+)-6-(2-hydroxy-3-methoxy-3-methylbutyl)-5,7-dimethoxycoumarin (+)-3, (+)-6-(3-chloro-2-hydroxy-3-methylbutyl)-5,7-dimethoxycoumarin (+)-4 and (-)-aculeatin (-)-5], isolated from Toddalia asiatica (L.) Lam. (T. aculeata Pers.), have been determined as R by ozonolysis of (+)-1 and by the chemical intercorrelation. Their optical purities were estimated by means of an H-1 NMR lanthanoid induced shift study using Eu(hfbc)3.

  DOI：

  10.1039/p19920001681

文献信息

• The absolute stereochemistries of (+)-toddalolactone and its related chiral coumarins from Toddalia asiatica(L.) Lam. (T. aculeata Pers.) and their optical purities
  作者：Hisashi Ishii、Jun-Ichi Kobayashi、Eri Sakurada (nee Kawanabe)、Tsutomu Ishikawa

  DOI：10.1039/p19920001681

  日期：——

  The absolute stereochemistries of (+)-toddalolactone (+)-1 and its related chiral coumarins [(+)-toddanol (+)-2, (+)-6-(2-hydroxy-3-methoxy-3-methylbutyl)-5,7-dimethoxycoumarin (+)-3, (+)-6-(3-chloro-2-hydroxy-3-methylbutyl)-5,7-dimethoxycoumarin (+)-4 and (-)-aculeatin (-)-5], isolated from Toddalia asiatica (L.) Lam. (T. aculeata Pers.), have been determined as R by ozonolysis of (+)-1 and by the chemical intercorrelation. Their optical purities were estimated by means of an H-1 NMR lanthanoid induced shift study using Eu(hfbc)3.