2,2,5-trimethyl-4-hexen-3-ol | 53960-42-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,2,5-trimethyl-4-hexen-3-ol
• 英文别名: 2,2,5-Trimethylhex-4-en-3-ol
• CAS: 53960-42-2
• 化学式: C₉H₁₈O
• 分子量: 142.241
• InChiKey: UOCQBESVRNGWFN-UHFFFAOYSA-N

物化性质

• 沸点：
  168.4±8.0 °C(Predicted)
• 密度：
  0.844±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  10
• 可旋转键数：
  2
• 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：

  2,2,5-trimethyl-4-hexen-3-ol 在 sodium hydride 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 6.0h， 生成 (3R*,4S*)-2,5,5-trimethyl-4-methoxy-3-(4'-phenyl-1',2',4'-triazolidine-3',5'-dion-1'-yl)-1-hexene
  参考文献：
  名称：

  Regio- and Diastereoselective Ene Reaction of 4-Phenyl-1,2,4-triazoline-3,5-dione with Chiral Allylic Alcohols and Their Derivatives

  摘要：

  Chiral allylic alcohols la-e reacted with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) in CH2Cl2 to produce 3-amino-1-alken-4-ols 2 and 3 in 78-89% yields, with 68-90% diastereomeric excess (de) in favor of the three isomer. Chiral allylic ethers If,g and acetates Ih,i gave similar yields but lower de (34-66%). Reaction of allylic alcohols 6a-e with PTAD in CH2Cl2 produced 1,3-regioisomers 7 and 8 exclusively in 33-65% yields without apparent diastereoselectivity, except when R-1 was a Bu-t group, in which case only syn product 7 was formed. However, when 6a or 6c was subjected to reaction with PTAD in a polar solvent, up to 88% de was observed. Reaction of allylic ethers 6f,g and acetates 6h,i with PTAD in CH2Cl2 also produced 7 and 8 exclusively with improved yields (56-96%) and diastereoselectivity (50-100% de in favor of the syn isomer).

  DOI：

  10.1021/jo980835g
• 作为产物：
  描述：

  3-甲基-2-丁烯醛 、 叔丁基锂 以 乙醚 为溶剂， 反应 4.0h， 以40%的产率得到2,2,5-trimethyl-4-hexen-3-ol
  参考文献：
  名称：

  芳族羰基化合物与手性和非手性烯丙基底物的区域选择性和非对映选择性 [2+2] 光环加成（Paternò-Büchi 反应）中的羟基指向性：具有多达三个立体中心作为合成构件的氧杂环丁烷的制备

  摘要：

  Synthesis 2001, No. 8, 18 06 2001。文章标识符：1437-210X,E;2001,0,08,1203,1214,ftx,en;C02601ss.pdf。© Georg Thieme Verlag Stuttgart · 纽约 ISSN 0039-7881 摘要：一组非手性和手性烯丙醇和衍生物 4 通过与羰基伙伴二苯甲酮的光环加成反应，区域和非对映选择性转化为氧杂环丁烷 5-7 (1)，苯乙酮（2）和苯甲醛（3）。具有 1,3-烯丙基菌株的手性烯丙醇产生的氧杂环丁烷具有高的苏式非对映选择性，更高的空间相互作用增加了这种选择性。在 CO 键形成步骤中氢键和 1,3-烯丙基应变之间的协同相互作用是造成这种立体选择性的原因，溶剂（甲醇与苯）效应和烯丙基羟基的掩蔽证明了这一点。对于前手性羰基伙伴 2 和 3，发现氧杂环丁环上的取代基具有出色的顺式非对映选择性。就系统间交叉步骤

  DOI：

  10.1055/s-2001-15070

文献信息

• Enantioselective C−C Bond Formation by Rhodium-Catalyzed Tandem Ylide Formation/[2,3]-Sigmatropic Rearrangement between Donor/Acceptor Carbenoids and Allylic Alcohols
  作者：Zhanjie Li、Huw M. L. Davies

  DOI：10.1021/ja9075293

  日期：2010.1.13

  The rhodium-catalyzed reaction of racemic allyl alcohols with methyl phenyldiazoacetate or methyl styryldiazoacetate results in a two-step process, an initial oxonium ylide formation followed by a [2,3]-sigmatropic rearrangement. This process competes favorably with the more conventional O-H insertion chemistry as long as donor/acceptor carbenoids and highly substituted allyl alcohols are used as substrates

  外消旋烯丙醇与苯基重氮乙酸甲酯或苯乙烯基重氮乙酸甲酯的铑催化反应产生一个两步过程，首先形成氧鎓叶立德，然后进行 [2,3]-σ 重排。只要使用供体/受体类卡宾和高度取代的烯丙醇作为底物，该过程就可以与更传统的 OH 插入化学竞争。当反应由 Rh(2)(S-DOSP)(4) 催化时，会以高对映选择性 (85-98% ee) 产生具有两个相邻季中心的叔 α-羟基羧酸衍生物。
• Kinetic resolution of racemic allylic alcohols <i>via</i> iridium-catalyzed asymmetric hydrogenation: scope, synthetic applications and insight into the origin of selectivity
  作者：Haibo Wu、Cristiana Margarita、Jira Jongcharoenkamol、Mark D. Nolan、Thishana Singh、Pher G. Andersson

  DOI：10.1039/d0sc05276k

  日期：——

  Asymmetric hydrogenation is one of the most commonly used tools in organic synthesis, whereas, kinetic resolution via asymmetric hydrogenation is less developed. Herein, we describe the first iridium catalyzed kinetic resolution of a wide range of trisubstituted secondary and tertiary allylic alcohols. Large selectivity factors were observed in most cases (s up to 211), providing the unreacted starting

  不对称氢化是有机合成中最常用的工具之一，而通过不对称氢化进行动力学拆分的开发较少。在此，我们描述了各种三取代仲和叔烯丙醇的第一次铱催化动力学拆分。在大多数情况下观察到较大的选择性因子（高达211），从而以良好的收率和高水平的对映体纯度（ee 高达 >99%）提供未反应的起始材料。该方法的实用性在一些生物活性天然产物的对映选择性正式合成中得到了强调，包括 pumiliotoxin A、inthomycin A 和 B。提出了 DFT 研究和关于选择性起源的选择性模型。
• Hydroxy-Directed Regio- and Diastereoselective [2+2] Photocycloaddition (Paternò−Büchi Reaction) of Benzophenone to Chiral Allylic Alcohols
  作者：Waldemar Adam、Karl Peters、Eva Maria Peters、Veit R. Stegmann

  DOI：10.1021/ja994279z

  日期：2000.3.1
• Regio- and Diastereoselective Ene Reaction of 4-Phenyl-1,2,4-triazoline-3,5-dione with Chiral Allylic Alcohols and Their Derivatives
  作者：Ay-Hua Gau、Guey-Liang Lin、Biing-Jiun Uang、Fen-Ling Liao、Sue-Lein Wang

  DOI：10.1021/jo980835g

  日期：1999.4.1

  Chiral allylic alcohols la-e reacted with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) in CH2Cl2 to produce 3-amino-1-alken-4-ols 2 and 3 in 78-89% yields, with 68-90% diastereomeric excess (de) in favor of the three isomer. Chiral allylic ethers If,g and acetates Ih,i gave similar yields but lower de (34-66%). Reaction of allylic alcohols 6a-e with PTAD in CH2Cl2 produced 1,3-regioisomers 7 and 8 exclusively in 33-65% yields without apparent diastereoselectivity, except when R-1 was a Bu-t group, in which case only syn product 7 was formed. However, when 6a or 6c was subjected to reaction with PTAD in a polar solvent, up to 88% de was observed. Reaction of allylic ethers 6f,g and acetates 6h,i with PTAD in CH2Cl2 also produced 7 and 8 exclusively with improved yields (56-96%) and diastereoselectivity (50-100% de in favor of the syn isomer).
• Hydroxy-Group Directivity in the Regioselective and Diastereoselective [2+2] Photocycloaddition (Paternò-Büchi Reaction) of Aromatic Carbonyl Compounds to Chiral and Achiral Allylic Substrates: The Preparation of Oxetanes with up to Three Stereogenic Centers as Synthetic Building Blocks
  作者：Waldemar Adam、Veit Stegmann

  DOI：10.1055/s-2001-15070

  日期：——

  benzaldehyde (3). Chiral allylic alcohols with 1,3-allylic strain yield the oxetanes in high threo diastereoselectivity, which was increased by higher steric interactions. The synergistic interplay between hydrogen bonding and 1,3-allylic strain in the CO-bond-forming step is made responsible for this stereoselectivity, as proven by solvent (methanol versus benzene) effects and masking of the allylic hydroxy

  Synthesis 2001, No. 8, 18 06 2001。文章标识符：1437-210X,E;2001,0,08,1203,1214,ftx,en;C02601ss.pdf。© Georg Thieme Verlag Stuttgart · 纽约 ISSN 0039-7881 摘要：一组非手性和手性烯丙醇和衍生物 4 通过与羰基伙伴二苯甲酮的光环加成反应，区域和非对映选择性转化为氧杂环丁烷 5-7 (1)，苯乙酮（2）和苯甲醛（3）。具有 1,3-烯丙基菌株的手性烯丙醇产生的氧杂环丁烷具有高的苏式非对映选择性，更高的空间相互作用增加了这种选择性。在 CO 键形成步骤中氢键和 1,3-烯丙基应变之间的协同相互作用是造成这种立体选择性的原因，溶剂（甲醇与苯）效应和烯丙基羟基的掩蔽证明了这一点。对于前手性羰基伙伴 2 和 3，发现氧杂环丁环上的取代基具有出色的顺式非对映选择性。就系统间交叉步骤