(4S,6R,6aS,9R)-3,6,9-trimethyl-4-(2-methylprop-1-enyl)-5,6,6a,7,8,9-hexahydro-4H-phenalene-1,2-diol | 106671-54-9

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: (4S,6R,6aS,9R)-3,6,9-trimethyl-4-(2-methylprop-1-enyl)-5,6,6a,7,8,9-hexahydro-4H-phenalene-1,2-diol
• CAS: 106671-54-9；135414-27-6
• 化学式: C₂₀H₂₈O₂
• 分子量: 300.441
• InChiKey: QYYIMVMYWAMAAS-GBOPCIDUSA-N

物化性质

• 沸点：
  389.5±42.0 °C(Predicted)
• 密度：
  1.099±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.9
• 重原子数：
  22
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (4S,6R,6aS,9R)-3,6,9-trimethyl-4-(2-methylprop-1-enyl)-5,6,6a,7,8,9-hexahydro-4H-phenalene-1,2-diol 生成 Acetic acid (4R,6S,6aR,9S)-1-acetoxy-3,6,9-trimethyl-4-(2-methyl-propenyl)-5,6,6a,7,8,9-hexahydro-4H-phenalen-2-yl ester
  参考文献：
  名称：

  Controlling benzylic functionality and stereochemistry: 2. Synthesis of the pseudopterosin aglycone

  摘要：

  Homologation, cyclisation, and reduction converted the tetralin (2) to the hexahydrophenalenol (8), which was methylated to afford (19) via alkoxide-directed metalation. The degree of stereoselectivity resulting from reactions of (19) and congeners with allylsilane - Lewis acid combinations was markedly dependent upon substitution patterns, whereas Et2AlCN-SnCl4 produced pseudoaxial nitriles. The trimethyl nitrile (24) was elaborated to the pseudopterosin aglycone (4).

  DOI：

  10.1016/s0040-4039(00)71243-3
• 作为产物：
  描述：

  在 sodium dithionite 作用下， 以 二氯甲烷 、 水 为溶剂， 生成 (4S,6R,6aS,9R)-3,6,9-trimethyl-4-(2-methylprop-1-enyl)-5,6,6a,7,8,9-hexahydro-4H-phenalene-1,2-diol
  参考文献：
  名称：

  Controlling benzylic functionality and stereochemistry: 2. Synthesis of the pseudopterosin aglycone

  摘要：

  Homologation, cyclisation, and reduction converted the tetralin (2) to the hexahydrophenalenol (8), which was methylated to afford (19) via alkoxide-directed metalation. The degree of stereoselectivity resulting from reactions of (19) and congeners with allylsilane - Lewis acid combinations was markedly dependent upon substitution patterns, whereas Et2AlCN-SnCl4 produced pseudoaxial nitriles. The trimethyl nitrile (24) was elaborated to the pseudopterosin aglycone (4).

  DOI：

  10.1016/s0040-4039(00)71243-3

文献信息

• Enantiospecific syntheses of pseudopterosin aglycones. Part 2. Synthesis of pseudopterosin K–L aglycone and pseudopterosin A–F aglycone via a B→BA→BAC annulation strategy
  作者：Philip J. Kocienski、Alessandro Pontiroli、Liu Qun

  DOI：10.1039/b102961b

  日期：——

  The enantiomeric aglycones of pseudopterosins K–L and A–F are synthesised from (−)- and (+)-isopulegol respectively. Key features are (a) the construction of the C3 stereogenic centre by a directed epoxidation–reduction sequence (K–L); (b) the creation of the C3 stereogenic centre by a Pfaltz asymmetric conjugate reduction (A–F); (c) benzannulation of a cyclic ketone starting with an α-oxoketene-S,S-acetal to give a tetrahydronaphthol ether; and (d) a diastereoselective intramolecular electrophilic aromatic substitution using an allylic sulfone as the electrophilic trigger to complete the hexahydro-1H-phenalene core. An X-ray structure of compound 50 was determined.

  假矮伞素K‒L和A‒F的对映体苷元分别由(−)-异胡薄荷醇和(+)-异胡薄荷醇合成。关键特征包括：(a)通过定向环氧化‒还原序列构建C3手性中心（假矮伞素K‒L）；(b)通过Pfaltz不对称共轭还原创建C3手性中心（假矮伞素A‒F）；(c)从α-氧代烯酮-S,S-缩酮开始，环酮进行苯并环合反应生成四氢萘酚醚；以及(d)以内烯基砜为亲电触发剂，通过非对映选择性分子内亲电芳香取代反应完成六氢-1H-菲啶核的构建。化合物50的X射线结构已被确定。
• Total synthesis of (±)-pseudopterosin A–F and K–L aglycone
  作者：David C. Harrowven、Melloney J. Tyte

  DOI：10.1016/j.tetlet.2004.01.060

  日期：2004.3

  A total synthesis of (±)-pseudopterosin A–F and K–L aglycone is described in which three aromatic alkylation reactions are used to construct the hexahydrophenalene ring system.

  描述了（±）-伪藻蛋白A-F和K-L糖苷配基的全合成，其中三个芳族烷基化反应用于构建六氢苯并环系统。
• Controlling benzylic functionality and stereochemistry: 2. Synthesis of the pseudopterosin aglycone
  作者：Stuart W. McCombie、Brian Cox、Ashit K. Ganduly

  DOI：10.1016/s0040-4039(00)71243-3

  日期：1991.5

  Homologation, cyclisation, and reduction converted the tetralin (2) to the hexahydrophenalenol (8), which was methylated to afford (19) via alkoxide-directed metalation. The degree of stereoselectivity resulting from reactions of (19) and congeners with allylsilane - Lewis acid combinations was markedly dependent upon substitution patterns, whereas Et2AlCN-SnCl4 produced pseudoaxial nitriles. The trimethyl nitrile (24) was elaborated to the pseudopterosin aglycone (4).