3-<(tert-Butyldimethylsilyl)oxy>-1-pentene | 128950-62-9

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 3-<(tert-Butyldimethylsilyl)oxy>-1-pentene
• 英文别名: tert-butyldimethyl(pent-1-en-3-yloxy)silane；tert-butyldimethyl(pent-4-en-3-yloxy)silane；3-tert-butyldimethylsilyloxypent-1-ene；3-tert-butyldimethylsiloxy-1-pentene；3-[(tert-Butyldimethylsilyl)oxy]-1-pentene；tert-Butyl(dimethyl)[(pent-1-en-3-yl)oxy]silane；tert-butyl-dimethyl-pent-1-en-3-yloxysilane
• CAS: 128950-62-9
• 化学式: C₁₁H₂₄OSi
• 分子量: 200.396
• InChiKey: RFWWMSABGPBSLQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.97
• 重原子数：
  13
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.82
• 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：

  3-<(tert-Butyldimethylsilyl)oxy>-1-pentene 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 生成 1-戊烯-3-醇
  参考文献：
  名称：

  非共轭二烯在铑催化的还原反应中的立体选择性

  摘要：

  Abstractmagnified imageThe stereochemical course of rhodium‐catalysed addition of hydrogen and catecholborane to bicyclo[2.2.1]heptadiene, and of hydrogen to a range of cyclic dienes has been analysed. For hydroboration, the overall catalytic reaction possesses exo‐selectivity, but the initial step is endo‐selective. For hydrogenation (deuteration), the first step may occur with either exo‐ or endo‐ selectivity, depending on the structure of the diene. This enables a distinction to be made between pathways involving prior dissociation of the diene, and direct addition to the complexed diene without full dissociation. The relative ease of hydrogenation of the first and second double bonds varies markedly with reactant structure, and also depends on the choice of catalyst ligands. For dicyclopentadiene, hydrogenation of the cyclopentene double bond is accompanied by rapid alkene isomerisation, as revealed by deuterium addition. The asymmetric hydrogenation of acyclic skipped meso‐dienes is reported, demonstrating control of relative rates of the two sequential steps, with ees of up to 53% after the first reduction.

  DOI：

  10.1002/adsc.200900013
• 作为产物：
  描述：

  3-(tert-butyldimethylsiloxy)-1,4-pentadiene 在 (bicyclo[2.2.1]hepta-2,5-diene)[1,4-bis(diphenylphosphanyl)butane]rhodium(I) trifluoromethanesulfonate 、 氢气 作用下， 以 甲醇 为溶剂， 21.0 ℃ 、162.13 kPa 条件下， 反应 0.17h， 生成 3-<(tert-Butyldimethylsilyl)oxy>-1-pentene
  参考文献：
  名称：

  非共轭二烯在铑催化的还原反应中的立体选择性

  摘要：

  Abstractmagnified imageThe stereochemical course of rhodium‐catalysed addition of hydrogen and catecholborane to bicyclo[2.2.1]heptadiene, and of hydrogen to a range of cyclic dienes has been analysed. For hydroboration, the overall catalytic reaction possesses exo‐selectivity, but the initial step is endo‐selective. For hydrogenation (deuteration), the first step may occur with either exo‐ or endo‐ selectivity, depending on the structure of the diene. This enables a distinction to be made between pathways involving prior dissociation of the diene, and direct addition to the complexed diene without full dissociation. The relative ease of hydrogenation of the first and second double bonds varies markedly with reactant structure, and also depends on the choice of catalyst ligands. For dicyclopentadiene, hydrogenation of the cyclopentene double bond is accompanied by rapid alkene isomerisation, as revealed by deuterium addition. The asymmetric hydrogenation of acyclic skipped meso‐dienes is reported, demonstrating control of relative rates of the two sequential steps, with ees of up to 53% after the first reduction.

  DOI：

  10.1002/adsc.200900013

文献信息

• Synthesis of Isomerically Pure (<i>Z</i>)-Alkenes from Terminal Alkynes and Terminal Alkenes: Silver-Catalyzed Hydroalkylation of Alkynes
  作者：Mitchell T. Lee、Madison B. Goodstein、Gojko Lalic

  DOI：10.1021/jacs.9b09336

  日期：2019.10.30

  molecules and often are used as intermediates in organic synthesis. Many alkenes exist in two stereoisomeric forms (E and Z), which have different structures and different properties. The selective formation of the two isomers is an important synthetic goal that has long inspired the development of new synthetic methods. However, the efficient synthesis of diastereopure, thermodynamically less stable, Z-alkenes

  烯烃是一类重要的化合物，常见于生物活性分子中，常被用作有机合成的中间体。许多烯烃以两种立体异构形式（E 和 Z）存在，它们具有不同的结构和不同的性质。两种异构体的选择性形成是一个重要的合成目标，长期以来一直激励着新合成方法的发展。然而，非对映纯、热力学稳定性较差的 Z-烯烃的有效合成仍然具有挑战性。在这里，我们展示了通过银催化的末端炔烃加氢烷基化，使用烷基硼烷作为偶联伙伴，有效合成非对映纯 Z-烯烃（Z:E > 300:1）。我们还描述了对底物范围的探索，这揭示了新方法的广泛官能团兼容性。
• Palladium-catalysed alkene chain-running isomerization
  作者：Andrew L. Kocen、Maurice Brookhart、Olafs Daugulis

  DOI：10.1039/c7cc04953f

  日期：——

  We report a method for palladium-catalysed chain-running isomerization of terminal and internal alkenes. Using an air-stable 2,9-dimethylphenanthroline-palladium catalyst in combination with NaBAr4 promoter, olefins are converted to the most stable double bond isomer at −30 to 20 °C. Silyl enol ethers are readily formed from silylated allylic alcohols. Fluorinated substituents are compatible with the

  我们报告了末端和内部烯烃的钯催化链运行异构化的方法。使用空气稳定的2,9-二甲基菲咯啉-钯催化剂与NaBAr 4助催化剂结合，可在-30至20°C的条件下将烯烃转化为最稳定的双键异构体。甲硅烷基烯醇醚易于由甲硅烷基化的烯丙醇形成。氟化取代基与反应条件相容，从而可以合成氟烯酸酯。可以以克为单位使用低至0.05％的催化剂负载量。
• Alkene migration to the end-terminal carbon bearing a phenyl group over a chiral siloxy carbon center in Heck reaction
  作者：Akiko Ida、Naoyuki Hoshiya、Jun'ichi Uenishi

  DOI：10.1016/j.tet.2015.03.018

  日期：2015.9

  The Heck reaction of aryl bromide with a terminal alkene substrate having a chiral center at the allylic position and a phenyl substituent at another terminal carbon is reported. An alkene migration to the phenyl-substituted end carbon is observed, along with the typical Heck reaction. This zipper-type migration occurs through multiple internal carbon bonds, and the stereochemistry of the internal

  据报道，芳基溴与末端烯基的烯丙基底物的Heck反应在烯丙基位置具有手性中心，在另一个末端碳具有苯基取代基。观察到烯烃迁移至苯基取代的末端碳，以及典型的Heck反应。这种拉链型迁移通过多个内部碳键发生，并且在此过程中内部手性中心的立体化学被完全保留。
• Chiral Synthesis via Organoboranes. 47. Efficient Synthesis of Unsymmetrical Ketones and Enantiomerically Pure Spiroketals Using (±)-Isopinocampheyldichloroborane
  作者：Herbert C. Brown、Shekhar V. Kulkarni、Uday S. Racherla、Ulhas P. Dhokte

  DOI：10.1021/jo980989w

  日期：1998.10.1

  intermediate was readily converted into the unsymmetrical ketones, R(1)COR(2), in high yields and purity, by an established method. This methodology was successfully applied to the synthesis of enantiomerically pure spiroketals using optically pure TBS ether protected homoallylic alcohols as the alkenes for stepwise hydroboration.

  现成的且稳定的（+/-）-异樟脑基二氯硼烷[（+/-）-IpcBCl（2）]使用原位还原-氢硼化方案方便地用于两个不同烯烃的逐步氢硼化，从而得到混合的三烷基硼烷IpcBR（1 R（2）。通过用醛RCHO处理从这些三烷基硼烷中方便地消除α-pine烯，提供了硼酸酯R（1）R（2）BOCH（2）R。通过建立的方法，该中间体很容易以高收率和高纯度转化为不对称酮R（1）COR（2）。该方法已成功地应用于光学纯的TBS醚保护的均烯丙基醇作为烯烃进行逐步硼氢化的对映体纯螺环酮的合成。
• General Strategy for the Synthesis of B₁ and L₁ Prostanoids: Synthesis of Phytoprostanes (<i>RS</i>)-9-L₁-PhytoP, (<i>R</i>)-9-L₁-PhytoP, (<i>RS</i>)-16-B₁-PhytoP, and (<i>RS</i>)-16-L₁-PhytoP
  作者：Ruggero Beretta、Mirko Giambelli Gallotti、Umberto Pennè、Alessio Porta、Juan Fernando Gil Romero、Giuseppe Zanoni、Giovanni Vidari

  DOI：10.1021/jo502538b

  日期：2015.2.6

  acceptor properties at carbons α and β, respectively. Key steps include the chemoselective lithiation of a 1-iodo-2-bromoolefin, the introduction of the side chains by transition-metal catalysis following Heck- or Suzuki-type protocols, the construction of an enone moiety by a mild Au(I)-catalyzed Meyer Schuster rearrangement, and a lipase-mediated hydrolysis of methyl esters to deliver the phytoprostanes

  在本文中，我们描述了一种新型的B 1和L 1型植物前列腺素的一般合成方法，该方法由自由基催化的α-亚麻酸的非酶过氧化作用在体内形成（1）。植物前列腺素（RS）-9-L 1 -PhytoP（5），（R）-9-L 1 -PhytoP（5a），（RS）-16-B 1 -PhytoP（6）和（RS）的合成-16-L 1 -PhytoP（7）例证了该策略。常见的起始化合物8已证明已被合成等价于分别在α和β碳上具有相反的给体和受体性质的环戊-2-烯-1-酮合成子。关键步骤包括1-碘-2-溴代烯烃的化学选择性锂化，遵循Heck-或Suzuki-type规程的过渡金属催化引入侧链，温和的Au（I）-构筑烯酮部分催化Meyer Schuster重排，以及脂肪酶介导的甲酯水解，以释放植物前列腺素作为游离羧酸。