(Z)-(1,2-diphenylvinyl)triethylsilane

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (Z)-(1,2-diphenylvinyl)triethylsilane
• 英文别名: [(Z)-1,2-diphenylethenyl]-triethylsilane
• 化学式: C₂₀H₂₆Si
• 分子量: 294.512
• InChiKey: BRCRLPHORRMLIC-JZJYNLBNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.27
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (Z)-(1,2-diphenylvinyl)triethylsilane 以 水 为溶剂， 反应 36.0h， 生成 顺式-二苯乙烯
  参考文献：
  名称：

  10.1002/anie.202404684

  摘要：

  Given her unrivalled proficiency in the synthesis of all molecules of life, nature has been an endless source of inspiration for developing new strategies in organic chemistry and catalysis. However, one feature that remains beyond chemists’ grasp is her unique ability to adapt the productivity of metabolic processes in response to triggers that indicate the temporary need for specific metabolites. To demonstrate the remarkable potential of such stimuli‐responsive systems, we present a metabolism‐inspired network of multicatalytic processes capable of selectively synthesising a range of products from simple starting materials. Specifically, the network is built of four classes of distinct catalytic reactions – cross‐couplings, substitutions, additions, and reductions, involving three organic starting materials – terminal alkyne, aryl iodide, and hydrosilane. All starting materials are either introduced sequentially or added to the system at the same time, with no continuous influx of reagents or efflux of products. All processes in the system are catalysed by a multifunctional heteronuclear PdII/PtII complex, whose performance can be controlled by specific additives and external stimuli. The reaction network exhibits a substantial degree of orthogonality between different pathways, enabling the controllable synthesis of ten distinct products with high efficiency and selectivity through simultaneous triggering and suppression mechanisms.

  DOI：

  10.1002/anie.202404684
• 作为产物：
  描述：

  苯乙炔 在 6NO₃^(1-)*C₈₈H₈₈N₁₂O₈Pd₄Pt⁽⁶⁺⁾ 、 sodium hydroxide 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 22.0h， 生成 (Z)-(1,2-diphenylvinyl)triethylsilane
  参考文献：
  名称：

  10.1002/anie.202404684

  摘要：

  Given her unrivalled proficiency in the synthesis of all molecules of life, nature has been an endless source of inspiration for developing new strategies in organic chemistry and catalysis. However, one feature that remains beyond chemists’ grasp is her unique ability to adapt the productivity of metabolic processes in response to triggers that indicate the temporary need for specific metabolites. To demonstrate the remarkable potential of such stimuli‐responsive systems, we present a metabolism‐inspired network of multicatalytic processes capable of selectively synthesising a range of products from simple starting materials. Specifically, the network is built of four classes of distinct catalytic reactions – cross‐couplings, substitutions, additions, and reductions, involving three organic starting materials – terminal alkyne, aryl iodide, and hydrosilane. All starting materials are either introduced sequentially or added to the system at the same time, with no continuous influx of reagents or efflux of products. All processes in the system are catalysed by a multifunctional heteronuclear PdII/PtII complex, whose performance can be controlled by specific additives and external stimuli. The reaction network exhibits a substantial degree of orthogonality between different pathways, enabling the controllable synthesis of ten distinct products with high efficiency and selectivity through simultaneous triggering and suppression mechanisms.

  DOI：

  10.1002/anie.202404684

文献信息

• [NiX ₂ (NHC) ₂ ] Complexes in the Hydrosilylation of Internal Alkynes
  作者：Joris Berding、John A. van Paridon、Vincent H. S. van Rixel、Elisabeth Bouwman

  DOI：10.1002/ejic.201100015

  日期：2011.5

  A number of nickel(II) dihalide complexes with small monodentate N-heterocyclic carbene ligands was synthesized and tested for their catalytic activity in the hydrosilylation of internal alkynes. The nickel(0) active species was obtained from the starting nickel(II) complex by reduction with diethylzinc. In all cases the catalytic reaction yielded the syn product selectively. The fastest catalysts

  合成了许多具有小的单齿 N-杂环卡宾配体的二卤化镍 (II) 配合物，并测试了它们在内部炔烃的氢化硅烷化中的催化活性。通过用二乙基锌还原，从起始镍 (II) 配合物获得镍 (0) 活性物质。在所有情况下，催化反应选择性地产生顺式产物。最快的催化剂在 50°C 下在 60 分钟内实现对称炔烃 3-己炔的完全转化，催化剂负载量为 5 mol%。不对称取代的内部炔烃 1-苯基-1-丙炔在 30 分钟内完全转化。主要产物 (83%) 显示为预期的 (E)-1-苯基-1-(三乙基甲硅烷基)丙烯。活性催化剂被证明是一种均相物质。
• The Highly Lewis Acidic Dicationic Phosphonium Salt: [(SIMes)PFPh ₂ ][B(C ₆ F ₅ ) ₄ ] ₂
  作者：Michael H. Holthausen、Meera Mehta、Douglas W. Stephan

  DOI：10.1002/anie.201403693

  日期：2014.6.16

  The dicationic imidazolium‐phosphonium salt [(SIMes)PFPh2][B(C6F5)4]2 has been prepared and shown to exhibit remarkable Lewis acidity in stoichiometric reactions and acting as an effective Lewis acid catalyst for the hydrodefluorination of fluoroalkanes and the hydrosilylation of olefins.

  制备了咪唑鎓‐盐[（SIMes）PFPh 2 ] [B（C 6 F 5）4 ] 2，在化学计量反应中显示出显着的路易斯酸性，可作为有效的路易斯酸催化剂用于氟代烷烃的加氢脱氟和烯烃的氢化硅烷化。
• Hydrosilylation of Internal Alkynes Catalyzed by Tris- Imidazolium Salt-Stabilized Palladium Nanoparticles
  作者：Marc Planellas、Wusheng Guo、Francisco Alonso、Miguel Yus、Alexandr Shafir、Roser Pleixats、Teodor Parella

  DOI：10.1002/adsc.201300641

  日期：2014.1.13

  Palladium nanoparticles stabilized with tris‐imidazolium tetrafluoroborates catalyze the stereoselective hydrosilylation of internal alkynes in a dry inert atmosphere to give (E)‐vinylsilanes in excellent yields. In the presence of controlled amounts of water a transfer hydrogenation reaction takes place with the formation of (Z)‐alkenes or the corresponding alkanes.

  用四氟硼酸三咪唑鎓鎓稳定的钯纳米颗粒在干燥的惰性气氛中催化内部炔烃的立体选择性氢化硅烷化，从而以优异的收率得到（E）-乙烯基硅烷。在存在控制量的水的情况下，会发生转移氢化反应，并形成（Z）-烯烃或相应的烷烃。
• Dichloro(ethylenediamine)platinum(II), a water-soluble analog of the antitumor cisplatin, as a heterogeneous catalyst for a stereoselective hydrosilylation of alkynes under neat conditions
  作者：Jean Fotie、Mercy Enechojo Agbo、Fengrui Qu、Trevor Tolar

  DOI：10.1016/j.tetlet.2020.152300

  日期：2020.9

  hydrosilylation of internal and terminal alkynes under heterogeneous catalysis by dichloro(ethylenediamine)platinum(II) is discussed. This commercially available platinum complex operates under neat conditions at 90 °C, producing exclusively the (trans) Z-isomer with symmetrical internal alkynes, while terminal alkynes produce a mixture of α- and β(E)-hydrosilylated products. No β(Z)-hydrosilylated product was

  讨论了在二氯（乙二胺）铂（II）多相催化下内部和末端炔烃氢化硅烷化的立体选择方法。这种可商购的铂络合物在90°C的纯条件下运行，仅生成具有对称内部炔烃的（反式）Z-异构体，而末端炔烃则生成α-和β（E）-氢化硅烷化产物的混合物。在该研究中未观察到β（Z）-氢化硅烷化产物，并且α-和β（E）-氢化硅烷化产物之间的选择性似乎在一定程度上受氢硅烷性质的影响。该催化剂在克规模的条件下最多可循环使用五次，而催化活性没有任何损失。
• Photoactivated hydrosilylation reaction of alkynes
  作者：Fei Wang、Douglas C. Neckers

  DOI：10.1016/s0022-328x(02)02042-9

  日期：2003.1

  The photoactivated (350 nm) hydrosilylation of alkynes by silanes catalyzed by platinum(II) bis(acetylacetonato) has been studied. Platinum(II) bis(acetylacetonato) is an efficient catalyst. High yields of adducts (>98% for terminal alkynes) can be obtained in 2–3 h after a short induction period with a catalyst–reactant molar ratio of 10−3/1. The reaction rate depends on the choice of silane, irradiation

  研究了铂（II）双（乙酰丙酮）催化的硅烷对炔烃的光活化（350 nm）氢化硅烷化。双（乙酰丙酮基）铂（II）是有效的催化剂。在较短的诱导期后的2-3小时内，催化剂与反应物的摩尔比为10 -3 / 1时，可以获得高收率的加合物（对于末端炔烃而言，> 98％）。反应速率取决于硅烷的选择，辐照时间和催化剂的浓度。主要产物是β-反式加合物。次要产物为具有少量β-顺式异构体的α异构体。报道了炔烃的氢化硅烷化反应与烯烃的氢化硅烷化反应的比较。