(S)-(+)-2-octyl trifluoroacetate | 87337-93-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (S)-(+)-2-octyl trifluoroacetate
• 英文别名: (S)-octan-2-yl trifluoroacetate；[(2S)-octan-2-yl] 2,2,2-trifluoroacetate
• CAS: 87337-93-7
• 化学式: C₁₀H₁₇F₃O₂
• 分子量: 226.239
• InChiKey: OSUSEXASYGZJOJ-QMMMGPOBSA-N

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：
  0.9
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  仲辛醇 在 D-古洛糖 、 glucose dehydrogenase from from Bacillus subtilis 、 recombinant alcohol dehydrogenase from Pichia pastoris GS₁₁₅, fused to N-terminus with hexahistidine 、 recombinant NAD(P)H oxidase from Lactobacillus sanfranciscensis 、 nicotinamide adenine dinucleotide phosphate 作用下， 以 氯仿 为溶剂， 反应 38.5h， 生成 (S)-(+)-2-octyl trifluoroacetate
  参考文献：
  名称：

  巴斯德毕赤酵母醇脱氢酶的筛选，分子克隆和生化表征，可用于动力学拆分外消旋β-羟基-β-三氟甲基酮

  摘要：

  在大海捞针中找针！鉴定了一种新的醇脱氢酶-来自巴斯德毕赤酵母的PPADH 。通过有效地将S形式还原为相应的立体化学均一的1,3-二醇（S，S）-2，能够区分外消旋β-羟基-β-三氟甲基酮1的两种对映异构体。

  DOI：

  10.1002/cbic.201600101

文献信息

• Alternatives to Phosphinooxazoline (<i>t-</i> BuPHOX) Ligands in the Metal-Catalyzed Hydrogenation of Minimally Functionalized Olefins and Cyclic β-Enamides
  作者：Maria Biosca、Marc Magre、Mercè Coll、Oscar Pàmies、Montserrat Diéguez

  DOI：10.1002/adsc.201700573

  日期：2017.8.17

  privileged 4‐alkyl‐2‐[2‐(diphenylphosphino)phenyl]‐2‐oxazoline (PHOX) ligands by replacing the phosphine moiety by a biaryl phosphite group and/or the introduction of a methylene spacer between the oxazoline and the phenyl ring. The modular design of the ligands has given us the opportunity not only to overcome the limitations of the iridium‐PHOX catalytic systems in the hydrogenation of minimally functionalized

  这项研究提出了一系列易于获得的新的亚磷酸铱和铑亚膦酸酯/恶唑啉催化体系，它们能够以高对映选择性（EE）首次有效地氢化最小官能化的烯烃和官能化的烯烃（总共62个实例）（最高> 99％）和转化。亚磷酸酯-恶唑啉配体很容易在两个合成步骤中获得，它们是通过以前的特权4-烷基-2- [2-（2-（二苯基膦基）苯基] -2-恶唑啉（PHOX）配体得到的，方法是将膦部分替换为亚芳基亚磷酸酯基和/或在恶唑啉和苯环之间引入亚甲基间隔基。配体的模块化设计为我们提供了机会，不仅克服了铱-PHOX催化系统在最小化功能化Z加氢中的局限性-烯烃和1,1-二取代的烯烃，而且还将其用途扩展到包含其他具有挑战性的骨架的未官能化烯烃（例如，环外苯并稠合和三芳基取代的烯烃）以及配位基团较差的烯烃（例如，α，β-不饱和烯烃）内酰胺，内酯，烯基硼酸酯等），对映选择性通常> 95％ee。此外，可以通过简单地改变亚磷酸二芳基酯部分的构
• Iridium-Catalyzed Enantioselective Hydrogenation of Alkenylboronic Esters
  作者：Adnan Ganić、Andreas Pfaltz

  DOI：10.1002/chem.201200246

  日期：2012.5.29

  iridium complex derived from a phosphino–imidazoline ligand is a highly efficient catalyst for the asymmetric hydrogenation of terminal vinyl boronic esters (see scheme). On the other hand, trisubstituted alkenyl‐boronates can be reduced with high activity and good to excellent enantioselectivity employing a pyridine–phosphinite ligand.

  选择合适的配体：从膦基-咪唑啉配体衍生的铱络合物是高效的末端乙烯基硼酸酯不对称加氢催化剂（请参见方案）。另一方面，使用吡啶-次亚膦酸酯配体可还原三取代的烯基硼酸酯，且活性高，对映选择性良好，甚至极好。
• Iridium-Catalyzed Asymmetric Hydrogenation with Simple Cyclohexane-Based P/S Ligands: <i>In Situ</i> HP-NMR and DFT Calculations for the Characterization of Reaction Intermediates
  作者：Carlota Borràs、Maria Biosca、Oscar Pàmies、Montserrat Diéguez

  DOI：10.1021/acs.organomet.5b00790

  日期：2015.11.9

  We report a reduced but structurally valuable phosphite/phosphinite-thioether ligand library for the Ir-hydrogenation of 40 minimally functionalized alkenes, including relevant examples with poorly coordinative groups. We found that enantiomeric excesses are mainly dependent on the substrate structure and on some ligand parameters (i.e., the type of thioether/phosphorus moieties and the configuration of the phosphite group), whereas the substituents of the biaryl phosphite moiety had little impact. By tuning the ligand parameters we were able to find highly selective catalysts for a range of substrates (ee's up to 99%). These phosphite/phosphinite-thioether ligands have a simple backbone and thus yield simple NMR spectra that reduce signal overlap and facilitate the identification of relevant intermediates. Therefore, by combining HP-NMR spectroscopy and theoretical studies, we were also able to identify the catalytically competent Ir-dihydride alkene species, which made it possible to explain the enantioselectivity obtained.