1-(but-3-yn-1-yl)-4-chlorobenzene

• 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: 1-(but-3-yn-1-yl)-4-chlorobenzene
• 英文别名: 1-but-3-ynyl-4-chlorobenzene
• 化学式: C₁₀H₉Cl
• 分子量: 164.634
• InChiKey: ZKFORRSYTFWKQX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 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：

  1-(but-3-yn-1-yl)-4-chlorobenzene 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 manganese triacetate 、 溶剂黄146 、 三乙胺 作用下， 反应 12.33h， 生成 (7-chloro-1-(p-tolyl)-3,4-dihydronaphthalen-2-yl)-diphenylphosphine oxide
  参考文献：
  名称：

  锰（III）介导的1,4-二芳基-1-丁炔的选择性二苯基膦酰基自由基反应，用于合成2-膦酰基化的3,4-二氢萘酞菁

  摘要：

  开发了由1，4-二芳基-1-丁炔和类似物的二苯基膦酰基自由基引发的顺序反应，用于合成2-膦酰基化的3，4-二氢萘萘和相关化合物。

  DOI：

  10.1021/jo402556a
• 作为产物：
  描述：

  3-(4-氯苯基)丙酸 在 硫酸 、 二异丁基氢化铝 、 potassium carbonate 作用下， 以 甲醇 、 二氯甲烷 、 甲苯 为溶剂， 反应 26.0h， 生成 1-(but-3-yn-1-yl)-4-chlorobenzene
  参考文献：
  名称：

  Removal of Human Ether-à-go-go Related Gene (hERG) K⁺ Channel Affinity through Rigidity: A Case of Clofilium Analogues

  摘要：

  Cardiotoxicity is a side effect that plagues modern drug design and is very often due to the off-target blockade of the human ether-a-go-go related gene (hERG) potassium channel. To better understand the structural determinants of this blockade, we designed and synthesized a series of 40 derivatives of clofilium, a class III antiarrhythrnic agent. These were evaluated in radioligand binding and patch-damp assays to establish structure affinity relationships (SAR) for this potassium channel. Efforts were especially focused on studying the influence of the structural rigidity and the nature of the linkers composing the clofilium scaffold. It was shown that introducing triple bonds and oxygen atoms in the n-butyl linker of the molecule greatly reduced affinity without significantly modifying the pK(a) of the essential basic nitrogen. These findings could prove useful in the first stages of drug discovery as a systematic way of reducing the risk of hERG K+ channel blockade-induced cardiotoxicity.

  DOI：

  10.1021/jm4010434

文献信息

• Enantioselective Construction of Axially Chiral Amino Sulfide Vinyl Arenes by Chiral Sulfide‐Catalyzed Electrophilic Carbothiolation of Alkynes
  作者：Yaoyu Liang、Jieying Ji、Xiaoyan Zhang、Quanbin Jiang、Jie Luo、Xiaodan Zhao

  DOI：10.1002/anie.201915470

  日期：2020.3.16

  The enantioselective construction of axially chiral compounds by electrophilic carbothiolation of alkynes is disclosed for the first time. This enantioselective transformation is enabled by the use of a Ts-protected bifunctional sulfide catalyst and Ms-protected ortho-alkynylaryl amines (Ts=tosyl; Ms=mesyl). Both electrophilic arylthiolating and electrophilic trifluoromethylthiolating reagents are

  首次公开了通过炔的亲电碳硫基化对轴向手性化合物的对映选择性结构。通过使用Ts保护的双官能硫化物催化剂和Ms保护的邻炔基芳基胺（Ts ＝甲苯磺酰基； Ms ＝甲磺酰基），可以实现这种对映选择性转化。亲电芳基硫醇化试剂和亲电三氟甲基硫醇化试剂均适用于该反应。轴向手性乙烯基-芳基氨基硫化物的所得产物可以容易地转化为联芳基氨基硫化物，联芳基氨基亚砜，联芳基胺，乙烯基芳基胺和其他有价值的双官能化化合物。
• Ir-Catalyzed Regio- and Enantioselective Hydroalkynylation of Trisubstituted Alkene to Access All-Carbon Quaternary Stereocenters
  作者：Su-Lei Zhang、Wen-Wen Zhang、Bi-Jie Li

  DOI：10.1021/jacs.1c04493

  日期：2021.6.30

  substrate-directed, iridium-catalyzed enantioselective hydroalkynylations of trisubstituted alkenes to form an acyclic all-carbon quaternary stereocenter β to a nitrogen atom. The hydroalkynylation of enamide occurred with unconventional selectivity, favoring the more hindered reaction site. Homopropargyl amides with β-stereocenters were prepared in high regio- and enantioselectivities. Combined experimental and

  全碳四元立体中心的立体选择性构建，尤其是无环立体中心，是有机合成中的一个重要挑战。特别是，具有四元立体中心 β 到氮原子的高炔丙基酰胺是有价值的合成中间体，可以通过炔烃转化转化为多种手性结构。然而，具有β四元立体中心的高炔丙基酰胺的高度对映选择性合成方法极为罕见。我们在此报告了前所未有的底物导向、铱催化的三取代烯烃的对映选择性加氢炔基化反应，形成一个氮原子的无环全碳四元立体中心 β。烯酰胺的加氢炔化反应以非常规的选择性发生，有利于更受阻的反应位点。以高区域选择性和对映选择性制备了具有 β-立体中心的同炔丙基酰胺。结合实验和计算研究揭示了区域选择性和对映选择性的起源。
• Asymmetric Synthesis of Functionalized <i>trans-</i>Cyclopropoxy Building Block for Grazoprevir
  作者：Feng Xu、Yong-Li Zhong、Hongming Li、Ji Qi、Richard Desmond、Zhiguo J. Song、Jeonghan Park、Tao Wang、Matthew Truppo、Guy R. Humphrey、Rebecca T. Ruck

  DOI：10.1021/acs.orglett.7b02867

  日期：2017.11.3

  A practical and asymmetric synthesis of a functionalized trans-cyclopropoxy building block for the preparation of the HCV NS3/4a protease inhibitor grazoprevir is reported. Intramolecular SN2 displacement–ring closure, followed by a Baeyer–Villiger oxidation, yields the desired trans-cyclopropanol with full control of diastereoselectivity. A terminal alkyne is then effectively installed using LiNH(CH2)2NEt2

  报道了用于制备HCV NS3 / 4a蛋白酶抑制剂格拉佐普韦的官能化反式-环丙氧基结构单元的实用和不对称合成。分子内S N 2置换-环闭合，然后进行Baeyer-Villiger氧化，可制得所需的反式-环丙醇，并完全控制非对映选择性。然后使用LiNH（CH 2）2 NEt 2有效地安装末端炔烃。从（S）-表氯醇开始，以51％的总收率制备了环丙氧基结构单元，光学纯度> 99.8％，无需分离任何中间体。
• Metal‐Free Synthesis of Selenodihydronaphthalenes by Selenoxide‐Mediated Electrophilic Cyclization of Alkynes
  作者：Shaoyu An、Zhong Zhang、Pingfan Li

  DOI：10.1002/ejoc.202100423

  日期：2021.6.7

  A metal-free, one-pot selenium mediated electrophilic cyclization reaction of alkynes and triflic anhydride-activated selenoxides was realized, giving selenium containing dihydronaphthalene products, including selenium-substituted phenanthrene, dihydroquinoline, 2H-chromene, and coumarin.

  实现了炔烃和三氟甲磺酸酐活化的氧化硒的无金属、一锅硒介导的亲电环化反应，得到含硒的二氢萘产品，包括硒取代的菲、二氢喹啉、2 H-色烯和香豆素。
• Gold-catalyzed annulations of allenes with N-hydroxyanilines to form indole derivatives with benzaldehyde as a promoter
  作者：Rahul Kisan Kawade、Po-Han Huang、Somnath Narayan Karad、Rai-Shung Liu

  DOI：10.1039/c3ob42131g

  日期：——

  Gold-catalyzed syntheses of 2,3-disubstituted indole derivatives from N-hydroxyanilines and allenes are described; these reactions require benzaldehyde as an additive to generate nitrones in situ. Our control experiments indicate that nitrones and water were indispensable in the reactions whereas N-hydroxyanilines alone were inactive nucleophiles. This synthetic method is compatible with allenes and

  描述了金催化的由N-羟基苯胺和丙二烯合成的2，3-二取代的吲哚衍生物。这些反应需要苯甲醛作为添加剂来原位产生硝酮。我们的对照实验表明，在反应中，硝酮和水是必不可少的，而单独的N-羟基苯胺是无活性的亲核试剂。该合成方法在合理范围内与丙二烯和N-羟基苯胺相容，进一步突出了其合成用途。