(5R)-(1β,5β)-2-butyl-5-(3Z-hexenyl)cyclohex-2-en-1-ol | 1079832-35-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (5R)-(1β,5β)-2-butyl-5-(3Z-hexenyl)cyclohex-2-en-1-ol
• 英文别名: (1R,5R)-2-butyl-5-[(Z)-hex-3-enyl]cyclohex-2-en-1-ol
• CAS: 1079832-35-1
• 化学式: C₁₆H₂₈O
• 分子量: 236.398
• InChiKey: HRUJLRKUVWTBCX-QAOXIVLQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (5R)-(1β,5β)-2-butyl-5-(3Z-hexenyl)cyclohex-2-en-1-ol 、 (R)-methoxytrifluoromethylphenylacetyl chloride 在 吡啶 作用下， 以 二氯甲烷 为溶剂， 以91%的产率得到[(1R,5R)-2-butyl-5-[(Z)-hex-3-enyl]cyclohex-2-en-1-yl] (2S)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoate
  参考文献：
  名称：

  Synthesis of 7-Epineoptilocaulin, Mirabilin B, and Isoptilocaulin. A Unified Biosynthetic Proposal for the Ptilocaulin and Batzelladine Alkaloids. Synthesis and Structure Revision of Netamines E and G

  摘要：

  Addition of guanidine to a 6-methylhexahydroindenone in MeOH at 85 degrees C afforded 7-epineoptilocaulin. A similar reaction with a 6-propylhexahydroindenone afforded netamine E. MnO2 oxidation of 7-epineoptilocaulin and netamine E afforded mirabilin B and netamine G, respectively. The netamines have the side chains trans, not cis as was initially proposed. A unified biosynthetic scheme for the batzelladines and ptilocaulin family is proposed. Conjugate addition of guanidine to a bis enone followed by an intramolecular Michael reaction of the enolate to the other enone, aldol reaction, dehydration, and enamine formation will lead to a tricyclic intermediate at the dehydroptilocaulin oxidation state. 1,4-Hydride addition will lead to ptilocaulin or 7-epineoptilocaulin depending on which face the hydride adds to. 1,2-Hydride addition will lead to isoptilocaulin. The key tricyclic intermediate was prepared from a tetrahydroindenone and guanidine and reduced with NaBH4 to give a mixture rich in ptilocaulin and isoptilocaulin.

  DOI：

  10.1021/jo801956w
• 作为产物：
  描述：

  (5R)-2-butyl-5-(3Z-hexenyl)-cyclohex-2-en-1-one 在 sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 作用下， 以 甲醇 为溶剂， 反应 1.5h， 以100%的产率得到(5R)-(1β,5β)-2-butyl-5-(3Z-hexenyl)cyclohex-2-en-1-ol
  参考文献：
  名称：

  Synthesis of 7-Epineoptilocaulin, Mirabilin B, and Isoptilocaulin. A Unified Biosynthetic Proposal for the Ptilocaulin and Batzelladine Alkaloids. Synthesis and Structure Revision of Netamines E and G

  摘要：

  Addition of guanidine to a 6-methylhexahydroindenone in MeOH at 85 degrees C afforded 7-epineoptilocaulin. A similar reaction with a 6-propylhexahydroindenone afforded netamine E. MnO2 oxidation of 7-epineoptilocaulin and netamine E afforded mirabilin B and netamine G, respectively. The netamines have the side chains trans, not cis as was initially proposed. A unified biosynthetic scheme for the batzelladines and ptilocaulin family is proposed. Conjugate addition of guanidine to a bis enone followed by an intramolecular Michael reaction of the enolate to the other enone, aldol reaction, dehydration, and enamine formation will lead to a tricyclic intermediate at the dehydroptilocaulin oxidation state. 1,4-Hydride addition will lead to ptilocaulin or 7-epineoptilocaulin depending on which face the hydride adds to. 1,2-Hydride addition will lead to isoptilocaulin. The key tricyclic intermediate was prepared from a tetrahydroindenone and guanidine and reduced with NaBH4 to give a mixture rich in ptilocaulin and isoptilocaulin.

  DOI：

  10.1021/jo801956w