(E)-1,4-bis(triiso-propylsilyl)but-1-en-3-yne | 259090-87-4

• 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: (E)-1,4-bis(triiso-propylsilyl)but-1-en-3-yne
• 英文别名: (E)-but-1-en-3-yne-1,4-diylbis(triisopropylsilane)；(E)-(iPr)3SiCCCHCHSi(iPr)3；(E)-1,4-bis(triisopropylsilyl)-1-buten-3-yne；tri(propan-2-yl)-[(E)-4-tri(propan-2-yl)silylbut-1-en-3-ynyl]silane
• CAS: 259090-87-4
• 化学式: C₂₂H₄₄Si₂
• 分子量: 364.762
• InChiKey: FCBOFVNVDYRROX-FYWRMAATSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.98
• 重原子数：
  24
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.82
• 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：

  (E)-1,4-bis(triiso-propylsilyl)but-1-en-3-yne 在 N-碘代丁二酰亚胺 作用下， 以 六氟异丙醇 为溶剂， 以92%的产率得到(E)-1-iodo-4-triisopropylsilyl-1-buten-3-yne
  参考文献：
  名称：

  Iododesilylation of TIPS-, TBDPS-, and TBS-Substituted Alkenes in Connection with the Synthesis of Amphidinolides B/D

  摘要：

  The C-Si bonds of triisopropylsilyl-substituted alkenes, 1,3-dienes, and related multifunctional substrates, as well as analogous C-TBDPS and C-TBS bonds, are readily and chemoselectively cleaved with NIS (or other sources of I(+), such as N-iodosaccharin, 1,3-diodohydantoin, and Ipy(2)BF(4)). The desired iodoalkenes are obtained stereospecifically without byproducts, provided that the reactions are carried out in CF(3)CHOHCF(3) and, in general, with 30 mol % of Ag(2)CO(3) (or AgOAc/2,6-Iutidine) as an additive. Fragment C10-C18 of cytotoxic amphidinolides B1-B3 and D has been synthesized using this improved procedure.

  DOI：

  10.1021/ol2020187
• 作为产物：
  描述：

  三异丙基硅基乙炔 在 bis(1,5-cyclooctadiene)nickel (0) 、 3-己炔 、 (3-methoxyprop-1-yn-1-yl)benzene 、 三(邻甲基苯基)磷 作用下， 以 甲苯 为溶剂， 反应 6.0h， 以60%的产率得到(E)-1,4-bis(triiso-propylsilyl)but-1-en-3-yne
  参考文献：
  名称：

  高度化学选择性的镍催化的三个不同炔烃的三组分交叉三聚反应，导致1,3-Dien-5炔烃

  摘要：

  交叉式：使用[Ni（ cod）2 ] / PPh 3催化剂。该反应适用于具有高区域和立体选择性的各种内部炔烃。

  DOI：

  10.1002/anie.200902099

文献信息

• Tandem Nickel-Catalyzed Dimerization/(4+2) Cycloaddition of Terminal Alkynes with Four-Membered Ring Ketones
  作者：Christophe Aïssa、Manuel Barday、Eva Nicolas、Bradley Higginson、François Delmotte、Martin Appelmans

  DOI：10.1055/a-1671-8497

  日期：2022.2

  Controlling the behavior of terminal alkynes in metal-catalyzed intermolecular tandem reactions is a formidable challenge despite the potential advantage offered by these strategies in modern synthesis. Herein, we describe that a nickel catalyst enables a tandem process involving the rapid dimerization of terminal alkynes into 1,3-enynes and the cycloaddition of these intermediates with an azetidinone

  尽管这些策略在现代合成中具有潜在优势，但在金属催化的分子间串联反应中控制末端炔烃的行为是一项艰巨的挑战。在此，我们描述了镍催化剂能够实现串联过程，该过程涉及末端炔烃快速二聚为 1,3-烯炔，以及这些中间体与氮杂环丁酮、氧杂环丁酮或苯并环丁烯酮的环加成反应。重要的是，不需要缓慢或连续添加试剂和催化剂来协调它们的反应性。这些结果与之前带有应变四元环底物的末端炔烃的环加成形成鲜明对比，后者导致低聚或环三聚，但叔丁基乙炔除外。
• Ruthenium-Catalyzed <i>trans</i>-Hydroalkynylation and <i>trans</i>-Chloroalkynylation of Internal Alkynes
  作者：Nagaraju Barsu、Markus Leutzsch、Alois Fürstner

  DOI：10.1021/jacs.0c08582

  日期：2020.11.4

  [Cp*RuCl]4 catalyzes the addition of iPr3SiC≡CX (X = H, Cl) across internal alkynes with formation of 1,3-enyne or 1-chloro-1,3-enyne derivatives, respectively; the reaction follows an unorthodox trans-addition mode. The well-balanced affinities of the different reaction partners to the ruthenium catalyst ensure that crossed addition prevails over homodimerization of the individual components, as can

  [Cp*RuCl]4 催化 iPr3SiC≡CX (X = H, Cl) 通过内部炔烃的加成，分别形成 1,3-enyne 或 1-chloro-1,3-enyne 衍生物；该反应遵循非正统的反式加成模式。不同反应伙伴对钌催化剂的良好平衡的亲和力确保交叉加成优于单个组分的均二聚，这可以从各种中间体的光谱和晶体数据推断出来；这包括一个双核复合物，其中内部炔烃桥接两个 [Cp*RuCl] 片段。
• Catalytic and Stoichiometric Cumulene Formation within Dimeric Group 2 Acetylides
  作者：Merle Arrowsmith、Mark R. Crimmin、Michael S. Hill、Sarah L. Lomas、Dugald J. MacDougall、Mary F. Mahon

  DOI：10.1021/om400678d

  日期：2013.9.9

  A series of beta-diketiminate-supported magnesium and calcium acetylide complexes have been synthesized by a-bond metathesis of magnesium n-butyl or magnesium and calcium amido precursors and a range of terminal acetylenes. The dimeric complexes have been characterized by NMR spectroscopy and X-ray diffraction analysis. The homoleptic bis(amido) and dialkyl complexes [MX-(SiMe3)(2)}(2)(THF)(2)] (M = Ca, Sr; X = N, CH) have been assessed for the atom-efficient, catalytic head-to-head dimerization of donor-functionalized terminal alkynes into butatrienes and aryl-/silyl-substituted terminal acetylenes into 1,3-enynes. Deuterium labeling studies of the catalytic reactions are suggested to imply that triene formation requires concerted proton delivery and rearrangement via an adjacent methylene group at a bimetallic alkaline-earth species.