(R,E)-2-styryltetrahydrofuran | 897387-94-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (R,E)-2-styryltetrahydrofuran
• 英文别名: (2R)-2-[(E)-2-phenylethenyl]oxolane
• CAS: 897387-94-9
• 化学式: C₁₂H₁₄O
• 分子量: 174.243
• InChiKey: MZGMTIBYFDHKAS-IDVQTMNDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (R,E)-2-styryltetrahydrofuran 在 palladium on activated charcoal 作用下， 以 甲醇 为溶剂， 反应 12.0h， 以68%的产率得到(+)-(S)-2-phenethyltetrahydrofuran
  参考文献：
  名称：

  Palladium-Catalyzed Intramolecular Asymmetric Hydroamination, Hydroalkoxylation, and Hydrocarbonation of Alkynes

  摘要：

  A conceptually novel approach for asymmetric intramolecular hydroamination, hydroalkoxylation and hydrocarbonation of alkynes using chiral palladium catalysts are described. The reactions of the aminoalkynes 5, alkynols 7, and alkynylmethines 9 in the presence of Pd-2(dba)(3)center dot CHCl3/PhCOOH/renorphos 4 in benzene (or benzene-hexane) at 100 degrees C gave the corresponding cyclization products (nitrogen heterocycles 6, oxygen heterocycles 8, and carbocycles 10) in good yields with good enantioselectivities. The origins of enantioselectivities in the hydroamination reaction are discussed based on DFT computations.

  DOI：

  10.1021/jo0603835
• 作为产物：
  描述：

  5-己炔-1-醇 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、 四(三苯基膦)钯 copper(l) iodide 、 (R,R)-2-exo-3-endo-bis(diphenylphosphino)bicyclo-[2.2.1]-heptane 、 三乙胺 、 苯甲酸 作用下， 以 苯 为溶剂， 反应 72.0h， 生成 (R,E)-2-styryltetrahydrofuran
  参考文献：
  名称：

  Palladium-Catalyzed Intramolecular Asymmetric Hydroamination, Hydroalkoxylation, and Hydrocarbonation of Alkynes

  摘要：

  A conceptually novel approach for asymmetric intramolecular hydroamination, hydroalkoxylation and hydrocarbonation of alkynes using chiral palladium catalysts are described. The reactions of the aminoalkynes 5, alkynols 7, and alkynylmethines 9 in the presence of Pd-2(dba)(3)center dot CHCl3/PhCOOH/renorphos 4 in benzene (or benzene-hexane) at 100 degrees C gave the corresponding cyclization products (nitrogen heterocycles 6, oxygen heterocycles 8, and carbocycles 10) in good yields with good enantioselectivities. The origins of enantioselectivities in the hydroamination reaction are discussed based on DFT computations.

  DOI：

  10.1021/jo0603835

文献信息

• Remote Cooperative Group Strategy Enables Ligands for Accelerative Asymmetric Gold Catalysis
  作者：Zhixun Wang、Corrado Nicolini、Cedric Hervieu、Yuk-Fai Wong、Giuseppe Zanoni、Liming Zhang

  DOI：10.1021/jacs.7b09136

  日期：2017.11.15

  accelerative asymmetric gold catalysis is achieved for the first time via chiral ligand metal cooperation. An asymmetrically positioned remote amide group in the designed chiral binaphthyl-based ligand plays the essential role of a general base catalyst and selectively accelerates the cyclizations of 4-allen-1-ols into one prochiral allene face. The reactions are mostly highly enantioselective with achiral

  通过手性配体金属的配合，首次实现了加速性不对称金催化。设计的手性联萘基配体中不对称定位的远端酰胺基团起一般碱催化剂的重要作用，并选择性地促进4-allen-1-ols环化成一个前手性异戊烯面。该反应大多数是与非手性底物高度对映选择性的，并且由于催化的加速性质，允许低至100ppm的负载。在任何主链sp 3上都存在一个预先存在的手性中心碳-碳，该反应保持高效，最重要的是，无论底物的立体化学如何，都能保持出色的异戊烯表面选择性。通过使用配体和底物对映体的不同组合，现在可以以极高的选择性获得通用的2-乙烯基四氢呋喃的所有四种立体异构体。该化学的基础设计揭示了一种新颖的，概念上独特的策略来应对具有挑战性的不对称金催化，迄今为止，该策略依赖于减速性不对称空间位阻方法。
• Synthesis of Chiral Bifunctional NHC Ligands and Survey of Their Utilities in Asymmetric Gold Catalysis
  作者：Jun-Qi Zhang、Yunkui Liu、Xing-Wang Wang、Liming Zhang

  DOI：10.1021/acs.organomet.9b00400

  日期：2019.10.28

  The synthesis and characterization of the chiral bifunctional NHC ligands based on the imidazo[1,5-a]pyridine (ImPy) scaffold are described. These ligands possess a fluxional biaryl axis and a chiral center. The configurational stability of the biaryl axis in their gold(I) complexes is investigated. The application of these axially chiral ImPy-based AuCl complexes in a series of gold catalysis is explored

  描述了基于咪唑并[1,5- a ]吡啶（ImPy）支架的手性双官能NHC配体的合成和表征。这些配体具有通量的联芳基轴和手性中心。研究了联芳基轴在其金（I）配合物中的构型稳定性。探索了这些轴向手性基于ImPy的AuCl配合物在一系列金催化中的应用，并观察到了不同程度的不对称诱导。在大多数情况下，配体（a S，R）-L8-H的环己基指向反应位点，因此发挥不对称空间影响在不对称诱导中更有效。
• Palladium-Catalyzed Intramolecular Asymmetric Hydroamination, Hydroalkoxylation, and Hydrocarbonation of Alkynes
  作者：Nitin T. Patil、Léopold Mpaka Lutete、Huanyou Wu、Nirmal K. Pahadi、Ilya D. Gridnev、Yoshinori Yamamoto

  DOI：10.1021/jo0603835

  日期：2006.5.1

  A conceptually novel approach for asymmetric intramolecular hydroamination, hydroalkoxylation and hydrocarbonation of alkynes using chiral palladium catalysts are described. The reactions of the aminoalkynes 5, alkynols 7, and alkynylmethines 9 in the presence of Pd-2(dba)(3)center dot CHCl3/PhCOOH/renorphos 4 in benzene (or benzene-hexane) at 100 degrees C gave the corresponding cyclization products (nitrogen heterocycles 6, oxygen heterocycles 8, and carbocycles 10) in good yields with good enantioselectivities. The origins of enantioselectivities in the hydroamination reaction are discussed based on DFT computations.