(+/-)-(6E)-7,11-dimethyldodeca-1,6,10-trien-4-ol | 128849-87-6

• 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: (+/-)-(6E)-7,11-dimethyldodeca-1,6,10-trien-4-ol
• 英文别名: (6E)-7,11-dimethyldodeca-1,6,10-trien-4-ol
• CAS: 128849-87-6
• 化学式: C₁₄H₂₄O
• 分子量: 208.344
• InChiKey: UAXRUTPHNCHENV-JLHYYAGUSA-N

物化性质

• 沸点：
  301.6±21.0 °C(Predicted)
• 密度：
  0.870±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  15
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 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：

  (+/-)-(6E)-7,11-dimethyldodeca-1,6,10-trien-4-ol 、 丙烯酸甲酯（MA） 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下， 以 二氯甲烷 为溶剂， 反应 0.83h， 以68%的产率得到(+/-)-methyl (2E,7E)-5-hydroxy-8,12-dimethyltrideca-2,7,11-trienoate
  参考文献：
  名称：

  Chemoselective Cross Metathesis of Bishomoallylic Alcohols:  Rapid Access to Fragment A of the Cryptophycins

  摘要：

  The racemic or enantioselective allylation of in situ formed beta,gamma-unsaturated aldehydes provides efficient access to bishomoallylic alcohols from readily available 2-vinyloxiranes. These products, when subjected to modified Grubbs cross metathesis conditions, afforded terminally homologated products in moderate to good yields with high E selectivity and without degradation of the enantiomeric excess. The compounds obtained through this two-step sequence yield fragments of an important and pharmacologically active family of cryptophycins.

  DOI：

  10.1021/ol049883f
• 作为产物：
  描述：

  (+/-)-2-[(1E)-2,6-dimethylhepta-1,5-dienyl]oxirane 、 烯丙基三氟硼酸钾 在 三氟化硼乙醚 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 以60%的产率得到(+/-)-(6E)-7,11-dimethyldodeca-1,6,10-trien-4-ol
  参考文献：
  名称：

  Chemoselective Cross Metathesis of Bishomoallylic Alcohols:  Rapid Access to Fragment A of the Cryptophycins

  摘要：

  The racemic or enantioselective allylation of in situ formed beta,gamma-unsaturated aldehydes provides efficient access to bishomoallylic alcohols from readily available 2-vinyloxiranes. These products, when subjected to modified Grubbs cross metathesis conditions, afforded terminally homologated products in moderate to good yields with high E selectivity and without degradation of the enantiomeric excess. The compounds obtained through this two-step sequence yield fragments of an important and pharmacologically active family of cryptophycins.

  DOI：

  10.1021/ol049883f

文献信息

• Organomanganese (II) reagents XX: Manganese mediated Barbier and Reformatsky like reactions an efficient route to homoallylic alcohols and β-acetoxyesters
  作者：Gérard Cahiez、Pierre-Yves Chavant

  DOI：10.1016/s0040-4039(00)70700-3

  日期：1989.1

  Allylic halides and α-bromoesters react with manganese metal in ethyl acetate; THF can also be used as solvent if a catalytic amount of zinc chloride is added to the reaction mixture. When the reaction is performed in the presence of various aldehydes or ketones, excellent yields of 1,2-addition products are obtained in preparative conditions.

  烯丙基卤化物和α-溴酸酯与锰金属在乙酸乙酯中反应；如果将催化量的氯化锌加入到反应混合物中，则THF也可以用作溶剂。当反应在各种醛或酮的存在下进行时，在制备条件下可获得极好的1,2-加成产物收率。