2-(hex-1-en-2-yl)thiophene | 1186000-49-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: 2-(hex-1-en-2-yl)thiophene
• CAS: 1186000-49-6
• 化学式: C₁₀H₁₄S
• 分子量: 166.287
• InChiKey: QKFKVAYURDQOAH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.95
• 重原子数：
  11.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  2-(hex-1-en-2-yl)thiophene 在 C₃₂H₁₂BF₂₄^(1-)*C₅₀H₄₂IrNO₄P⁽¹⁺⁾ 、 氢气 作用下， 以 二氯甲烷 为溶剂， 20.0 ℃ 、100.0 kPa 条件下， 反应 2.0h， 生成 2-(hexan-2-yl)thiophene
  参考文献：
  名称：

  Iridium Phosphite−Oxazoline Catalysts for the Highly Enantioselective Hydrogenation of Terminal Alkenes

  摘要：

  A modular library of readily available phosphite-oxazoline ligands (L1-L16a-f) has been successfully applied for the first time in the Ir-catalyzed asymmetric hydrogenation of a broad range of highly unfunctionalized 1,1,-disubstituted terminal alkenes. Enantioselectivities up to >99% and full conversions were obtained in several 1, 1 -disubstituted alkenes, including substrate classes that have never been asymmetrically hydrogenated before (i.e,, 1,1-heteoraryl-alkyl, 1,1-diaryl, trifluoromethyl, etc.). The results indicated that these catalytic systems have high tolerance to the steric and electronic requirements of the substrate and also to the presence of a neighboring polar group. The asymmetric hydrogenations were also performed using propylene carbonate as solvent, which allowed the It catalyst to be reused and maintained the excellent enantioselectivities.

  DOI：

  10.1021/ja904152r
• 作为产物：
  描述：

  2-正戊酰噻吩 、 甲基三苯基溴化膦 在 正丁基锂 作用下， 以 四氢呋喃 为溶剂， 以73%的产率得到2-(hex-1-en-2-yl)thiophene
  参考文献：
  名称：

  Iridium Phosphite−Oxazoline Catalysts for the Highly Enantioselective Hydrogenation of Terminal Alkenes

  摘要：

  A modular library of readily available phosphite-oxazoline ligands (L1-L16a-f) has been successfully applied for the first time in the Ir-catalyzed asymmetric hydrogenation of a broad range of highly unfunctionalized 1,1,-disubstituted terminal alkenes. Enantioselectivities up to >99% and full conversions were obtained in several 1, 1 -disubstituted alkenes, including substrate classes that have never been asymmetrically hydrogenated before (i.e,, 1,1-heteoraryl-alkyl, 1,1-diaryl, trifluoromethyl, etc.). The results indicated that these catalytic systems have high tolerance to the steric and electronic requirements of the substrate and also to the presence of a neighboring polar group. The asymmetric hydrogenations were also performed using propylene carbonate as solvent, which allowed the It catalyst to be reused and maintained the excellent enantioselectivities.

  DOI：

  10.1021/ja904152r

文献信息

• Adaptative Biaryl Phosphite-Oxazole and Phosphite-Thiazole Ligands for Asymmetric Ir-Catalyzed Hydrogenation of Alkenes
  作者：Javier Mazuela、Alexander Paptchikhine、Oscar Pàmies、Pher G. Andersson、Montserrat Diéguez

  DOI：10.1002/chem.200903350

  日期：2010.4.19

  library of readily available phosphite–oxazole/thiazole ligands (L1 a–g–L7 a–g) was applied in the Ir‐catalyzed asymmetric hydrogenation of several largely unfunctionalized E‐ and Z‐trisubstituted and 1,1‐disubstituted terminal alkenes. The ability of the catalysts to transfer chiral information to the product could be tuned by choosing suitable ligand components (bridge length, the substituents in the

  一个易得的亚磷酸酯-恶唑/噻唑配体库（L1 a – g – L7 a – g）被用于Ir催化的几个未官能化的E和Z的不对称加氢反应中-三取代和1,1-二取代的末端烯烃。可以通过选择合适的配体组分（桥长，杂环和烷基主链上的取代基，配体主链的构型以及烯丙基中的取代基/构型）来调节催化剂将手性信息传递给产物的能力。亚磷酸亚芳基酯部分），因此可以根据需要使每种底物的对映选择性最大化。因此，对于多种E-和Z-三取代和1,1-二取代的末端烯烃，对映选择性极好（对映体过量（ee）值> 99％）。就底物的多功能性而言，亚磷酸亚芳基酯部分是非常有利的配体组分。
• A Modular Furanoside Thioether-Phosphite/Phosphinite/ Phosphine Ligand Library for Asymmetric Iridium-Catalyzed Hydrogenation of Minimally Functionalized Olefins: Scope and Limitations
  作者：Mercedes Coll、Oscar Pàmies、Montserrat Diéguez

  DOI：10.1002/adsc.201200711

  日期：2013.1.14

  thioether‐phosphite/phosphinite/phosphine ligand library has been synthesized for the iridium‐catalyzed asymmetric hydrogenation of minimally functionalized olefins. These ligands can be prepared efficiently from easily accessible D‐(+)‐xylose. We found that their effectiveness at transferring the chiral information in the product can be tuned by correctly choosing the ligand components. Enantioselectivities were

  合成了高度模块化的呋喃糖苷硫醚亚磷酸酯/次膦酸酯/膦配体库，用于铱催化的最小官能化烯烃的不对称氢化。这些配体可以从容易获得的D -（+）-木糖中高效制备。我们发现，可以通过正确选择配体组分来调节其在产品中传递手性信息的有效性。因此，在广泛的E-和Z范围内，对映选择性极好（ee高达99％）使用5-脱氧核糖呋喃糖苷硫醚-亚磷酸酯配体的三取代烯烃。应该指出的是，这些催化剂对相邻极性基团的存在也具有很高的耐受性。对于1,1-二取代的底物，只需改变亚磷酸二芳基酯的构型，就可以高对映选择性获得氢化产物的两种对映异构体。还使用碳酸亚丙酯作为溶剂进行不对称氢化，这使得铱催化剂可以重复使用，同时保持优异的对映选择性。
• Pyranoside Phosphite–Oxazoline Ligands for the Highly Versatile and Enantioselective Ir-Catalyzed Hydrogenation of Minimally Functionalized Olefins. A Combined Theoretical and Experimental Study
  作者：Javier Mazuela、Per-Ola Norrby、Pher G. Andersson、Oscar Pàmies、Montserrat Diéguez

  DOI：10.1021/ja204948k

  日期：2011.8.31

  A modular set of phosphite-oxazoline (P,N) ligands has been applied to the title reaction. Excellent ligands have been identified for a range of substrates, including previously challenging terminally disubstituted olefins, where we now have reached enantioselectivities of 99% for a range of substrates. The selectivity is best for minimally functionalized substrates with at least a moderate size difference

  一组模块化的亚磷酸酯-恶唑啉 (P,N) 配体已应用于标题反应。已经为一系列底物确定了优异的配体，包括以前具有挑战性的末端双取代烯烃，我们现在对一系列底物的对映选择性达到了 99%。选择性对于最少官能化的底物而言是最好的，在孪晶基团之间具有至少中等大小的差异。DFT 研究允许确定首选途径。对映选择性的计算预测给出了非常好的准确性。