4-methyl-2-octen-4-ol | 60934-86-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-methyl-2-octen-4-ol
• 英文别名: (E)-4-methyloct-2-en-4-ol
• CAS: 60934-86-3
• 化学式: C₉H₁₈O
• 分子量: 142.241
• InChiKey: NSVRYEHHAKRBPY-FNORWQNLSA-N

物化性质

• 沸点：
  182.9±8.0 °C(Predicted)
• 密度：
  0.845±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 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：

  4-methyl-2-octen-4-ol 、 乙腈 在 CoCl₂ 乙酸酐 作用下， 反应 20.0h， 以50%的产率得到N-((E)-1,3-Dimethyl-hept-2-enyl)-acetamide
  参考文献：
  名称：

  Cobalt(II)-Catalyzed Conversion of Allylic Alcohols/Acetates to Allylic Amides in the Presence of Nitriles

  摘要：

  Various secondary allylic alcohols or their acetates and tertiary allylic alcohols can be converted to the corresponding transposed allylic amides in the presence of a catalytic quantity of cobalt(II) chloride and acetic anhydride in acetonitrile. Tertiary alcohols undergo complete rearrangement whereas secondary ones afford a mixture of regioisomers. Moderate yields of amides are also obtained by reacting acrylonitrile with secondary alcohols in 1,2-dichloroethane. The presence of acetic anhydride or acetic acid is crucial to the formation of amides as the absence of the former affords no amides and the allylic alcohols are mainly recovered as regioisomeric mixtures. The regioselectivity during amide formation can be enhanced by using cobalt complexes 14-16 in acetic acid medium. Some preliminary studies indicate that these reactions are proceeding via an pi-allyl complex or tight ion pair rather than a [3,3] sigmatropic rearrangement of acetamidate obtained in a Pinner reaction.

  DOI：

  10.1021/jo00114a013
• 作为产物：
  描述：

  (E)-2-octen-4-one 、 甲基锂 以 四氢呋喃 为溶剂， 反应 1.0h， 生成 4-methyl-2-octen-4-ol
  参考文献：
  名称：

  含氧铵盐的叔烯丙醇的氧化重排

  摘要：

  描述了使用氧铵盐将叔烯丙基醇氧化重排为β-取代的α，β-不饱和羰基化合物的实用且高效的方法。开发的方法适用于无环底物以及中元环底物和大环底物。氧铵盐的抗衡阴离子在这种氧化重排中起关键作用。

  DOI：

  10.1021/jo800634r

文献信息

• IBS-Catalyzed Oxidative Rearrangement of Tertiary Allylic Alcohols to Enones with Oxone
  作者：Muhammet Uyanik、Ryota Fukatsu、Kazuaki Ishihara

  DOI：10.1021/ol9013188

  日期：2009.8.6

  A 2-iodoxybenzenesulfonic acid (IBS)-catalyzed oxidative rearrangement of tertiary allylic alcohols to enones with powdered Oxone in the presence of potassium carbonate and tetrabutylammonium hydrogen sulfate has been developed.

  粉末状的Oxone用2-碘氧基苯磺酸（IBS）催化叔烯丙基醇氧化成烯酮 已经开发了在碳酸钾和四丁基铵硫酸氢存在下的溶液。
• Electroorganic chemistry. 143. Electroreductively promoted diastereoselective coupling of ketones with allylic alcohols. Synthesis of optically active 1,4-diols
  作者：Tatsuya Shono、Yoshiyuki Morishima、Naotake Moriyoshi、Manabu Ishifune、Shigenori Kashimura

  DOI：10.1021/jo00081a001

  日期：1994.1

  Cathodic coupling of ketones with allylic alcohols has been found to take place with high regio- and stereoselectivities at the position gamma to the hydroxyl group to afford the corresponding 1,4-diols.
• Cobalt(II)-Catalyzed Conversion of Allylic Alcohols/Acetates to Allylic Amides in the Presence of Nitriles
  作者：Manoj Mukhopadhyay、M. Madhava Reddy、G. C. Maikap、Javed Iqbal

  DOI：10.1021/jo00114a013

  日期：1995.5

  Various secondary allylic alcohols or their acetates and tertiary allylic alcohols can be converted to the corresponding transposed allylic amides in the presence of a catalytic quantity of cobalt(II) chloride and acetic anhydride in acetonitrile. Tertiary alcohols undergo complete rearrangement whereas secondary ones afford a mixture of regioisomers. Moderate yields of amides are also obtained by reacting acrylonitrile with secondary alcohols in 1,2-dichloroethane. The presence of acetic anhydride or acetic acid is crucial to the formation of amides as the absence of the former affords no amides and the allylic alcohols are mainly recovered as regioisomeric mixtures. The regioselectivity during amide formation can be enhanced by using cobalt complexes 14-16 in acetic acid medium. Some preliminary studies indicate that these reactions are proceeding via an pi-allyl complex or tight ion pair rather than a [3,3] sigmatropic rearrangement of acetamidate obtained in a Pinner reaction.
• Oxidative Rearrangement of Tertiary Allylic Alcohols Employing Oxoammonium Salts
  作者：Masatoshi Shibuya、Masaki Tomizawa、Yoshiharu Iwabuchi

  DOI：10.1021/jo800634r

  日期：2008.6.1

  methods for oxidative rearrangement of tertiary allylic alcohols to β-substituted α,β-unsaturated carbonyl compounds employing oxoammonium salts are described. The methods developed are applicable to acyclic substrates as well as medium membered ring substrates and macrocyclic substrates. The counteranion of the oxoammonium salt plays crucial roles on this oxidative rearrangement.

  描述了使用氧铵盐将叔烯丙基醇氧化重排为β-取代的α，β-不饱和羰基化合物的实用且高效的方法。开发的方法适用于无环底物以及中元环底物和大环底物。氧铵盐的抗衡阴离子在这种氧化重排中起关键作用。