(6R)-6-methyl-6-[(1E)-4-methylpenta-1,3-dienyl]-1,4-dioxaspiro[4.5]decane | 179749-18-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (6R)-6-methyl-6-[(1E)-4-methylpenta-1,3-dienyl]-1,4-dioxaspiro[4.5]decane
• CAS: 179749-18-9
• 化学式: C₁₅H₂₄O₂
• 分子量: 236.354
• InChiKey: PBCZHYVKZWEKSY-VIIAAUOXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (6R)-6-methyl-6-[(1E)-4-methylpenta-1,3-dienyl]-1,4-dioxaspiro[4.5]decane 在 对甲苯磺酸 、 lithium diisopropyl amide 作用下， 以 水 、 丙酮 、 苯 为溶剂， 反应 14.5h， 生成 (4S,4aR,12aR)-4,12a-dimethyl-11-(2-methylprop-1-enyl)-2,3,4,5,11,12-hexahydro-1H-benzo[d][1]benzoxocine-4a,7-diol
  参考文献：
  名称：

  Total Synthesis and Absolute Configuration of Riccardiphenols A and B, Isolated from the Liverwort Riccardia crassa

  摘要：

  The title compounds were synthesized as optically active forms using chiral Michael addition of the imine, prepared from 2-methylcyclohexanone and (S)-(-)-phenylethylamine, to methyl propiolate. The etherification of the intermediate triol was accomplished by TsOH-catalyzed cyclization. The absolute configurations of the natural products, riccardiphenols A and B, were established as 1 and 2, respectively.

  DOI：

  10.1021/jo952253u
• 作为产物：
  描述：

  (R)-(+)-2-(2-甲酯基乙基)-2-甲基环己酮 在 lithium aluminium tetrahydride 、 正丁基锂 、 草酰氯 、 苯基溴化硒 、 双氧水 、 对甲苯磺酸 、 二甲基亚砜 、 三乙胺 、 lithium diisopropyl amide 作用下， 以 乙醚 为溶剂， 反应 5.25h， 生成 (6R)-6-methyl-6-[(1E)-4-methylpenta-1,3-dienyl]-1,4-dioxaspiro[4.5]decane
  参考文献：
  名称：

  Total Synthesis and Absolute Configuration of Riccardiphenols A and B, Isolated from the Liverwort Riccardia crassa

  摘要：

  The title compounds were synthesized as optically active forms using chiral Michael addition of the imine, prepared from 2-methylcyclohexanone and (S)-(-)-phenylethylamine, to methyl propiolate. The etherification of the intermediate triol was accomplished by TsOH-catalyzed cyclization. The absolute configurations of the natural products, riccardiphenols A and B, were established as 1 and 2, respectively.

  DOI：

  10.1021/jo952253u

文献信息

• Total Synthesis and Absolute Configuration of Riccardiphenols A and B, Isolated from the Liverwort <i>Riccardia crassa</i>
  作者：Motoo Tori、Tomonobu Hamaguchi、Kumiko Sagawa、Masakazu Sono、Yoshinori Asakawa

  DOI：10.1021/jo952253u

  日期：1996.1.1

  The title compounds were synthesized as optically active forms using chiral Michael addition of the imine, prepared from 2-methylcyclohexanone and (S)-(-)-phenylethylamine, to methyl propiolate. The etherification of the intermediate triol was accomplished by TsOH-catalyzed cyclization. The absolute configurations of the natural products, riccardiphenols A and B, were established as 1 and 2, respectively.