1-乙炔基-2-(甲硫基)苯 | 78905-08-5

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 中文名称: 1-乙炔基-2-(甲硫基)苯
• 英文名称: (2-ethynylphenyl)(methyl)sulfane
• 英文别名: 2-ethynylthioanisole；1-ethynyl-2-(methylthio)benzene；1-ethynyl-2-(methylsulfanyl)benzene；1-ethynyl-2-methylsulfanylbenzene
• CAS: 78905-08-5
• 化学式: C₉H₈S
• mdl: MFCD17281920
• 分子量: 148.229
• InChiKey: LUZJXVQEGWDHEU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.111
• 拓扑面积：
  25.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-乙炔基-2-(甲硫基)苯 在 oxone||potassium monopersulfate triple salt 、 sodium iodide 作用下， 以 四氢呋喃 为溶剂， 以92 %的产率得到3-碘苯并[b]噻吩
  参考文献：
  名称：

  一种单过硫酸氢钾催化法制备3-卤代苯并噻吩类化合物的方法

  摘要：

  本发明提供了单过硫酸氢钾催化法制备3‑卤代苯并噻吩类化合物的方法，在酸性醚类溶剂存在下，以2‑乙炔基苯甲硫醚及其衍生物(I)和卤化物MX为原料，经催化剂单过硫酸氢盐催化制备得到为3‑卤代苯并噻吩类化合物(II)，其中，催化反应温度不超过40℃。本发明制备步骤简便，产品收率高，反应条件温和，绿色环保，且参与反应的原料、辅料均为构成简单、廉价易得，降低了合成成本。

  公开号：

  CN116082296A
• 作为产物：
  描述：

  2-甲基-4-(2-(甲硫基)苯基)丁-3-炔-2-醇 在 sodium hydride 作用下， 以 苯 为溶剂， 反应 1.0h， 以95%的产率得到1-乙炔基-2-(甲硫基)苯
  参考文献：
  名称：

  Synthesis and cyclooxygenase inhibitory activities of linear 1-(methanesulfonylphenyl or benzenesulfonamido)-2-(pyridyl)acetylene regioisomers

  摘要：

  A group of 1-(aminosulfonylphenyl and methylsulfonylphenyl)-2-(pyridyl) acetylene regioisomers were designed such that a COX-2 SO2NH2 pharmacophore was located at the para-position of the phenyl ring, or a SO2Me pharmacophore was placed at the ortho-, meta- or para-position of the phenyl ring, on an acetylene template (scaffold). The point of attachment of the pyridyl ring to the acetylene linker was simultaneously varied (2-pyridyl, 3-pyridyl, 4-pyridyl, 3-methyl- 2-pyridyl) to determine the combined effects of positional, steric, and electronic substituent properties upon COX-1 and COX-2 inhibitory potency and COX isozyme selectivity. These target linear 1-(phenyl)-2-(pyridyl) acetylenes were synthesized via a palladium-catalyzed Sonogashira cross-coupling reaction. Structure-activity relationship (SAR) data (IC50 values) acquired by determination of the in vitro ability of the title compounds to inhibit the COX-1 and COX-2 isozymes showed that the position of the COX-2 SO2NH2 or SO2Me pharmacophore on the phenyl ring, and the point of attachment of the pyridyl ring to the acetylene linker, were either individual, or collective, determinants of COX-2 inhibitory potency and selectivity. A number of compounds discovered in this study, particularly 1-(4-aminosulfonylphenyl)-2-(3-methyl-2-pyridyl) acetylene (22), 1-(3-methanesulfonylphenyl)-2-(2-pyridyl) acetylene (27), 1-(3methanesulfonylphenyl)-2-(4-pyridyl)acetylene (29), 1-(4-methanesulfonylphenyl)-2-(2-pyridyl)acetylene (30), and 1-(4-methanesulfonylphenyl)2-(3-pyridyl)acetylene (31), exhibit potent (IC50 = 0.04-0.33 mu M range) and selective (SI = 18 to > 312 range) COX-2 inhibitory activities, that compare favorably with the reference drug celecoxib (COX-2 IC50 = 0.07 mu M; COX-2 SI = 473). The sulfonamide (22), and methylsulfonyl (27 and 31), compounds exhibited anti-inflammatory activities (ID50 = 59.9-76.6 mg/kg range) that were intermediate in potency between the reference drugs aspirin (ID50 = 128.7 mg/kg) and celecoxib (ID50 = 10.8 mg/kg). (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2007.11.003
• 作为试剂：
  描述：

  diethyl 2-allyl-2-bromomalonate 、 2,6-二叔丁基-4-甲基苯酚 在 2,2'-联吡啶 、 1-乙炔基-2-(甲硫基)苯 、 copper(II) bis(trifluoromethanesulfonate) 、 potassium carbonate 作用下， 以 乙腈 为溶剂， 反应 8.0h， 以47%的产率得到diethyl 2-allyl-2-(3,5-ditert-butyl-4-hydroxybenzyl)malonate
  参考文献：
  名称：

  Cascade Annulation of 2-Alkynylthioanisoles with Unsaturated α-Bromocarbonyls Leading to Thio-Benzobicyclic Skeletons

  摘要：

  A protocol of Cu-catalyzed annulation of phenylethynylsulfanes with unsaturated alpha-bromocarbonyls for the construction of thio-benzobicyclic skeletons is described. In this single reaction, three new bonds and two new rings can be established, highlighting the step-economics and high efficiency of this protocol.

  DOI：

  10.1021/acs.joc.8b02001

文献信息

• Toward a Greener Barluenga–Valdés Cross-Coupling: Microwave-Promoted C–C Bond Formation with a Pd/PEG/H₂O Recyclable Catalytic System
  作者：Diana Lamaa、Estelle Messe、Vincent Gandon、Mouad Alami、Abdallah Hamze

  DOI：10.1021/acs.orglett.9b03310

  日期：2019.11.1

  for the synthesis of 1,1-diarylethylenes using palladium catalysis has been developed. The new catalytic system based on Pd/Xphos–SO3Na or Pd/MeDavephos–CF3SO3 in PEG/H2O under microwave irradiation was found to be the best conditions for this transformation. The recyclability of the palladium catalyst system was also studied, and it was found to be active over nine runs without significant loss in its

  已开发出一种绿色的Barluenga-Valdés交叉偶联反应，利用钯催化合成1,1-二芳基乙烯。发现在微波辐射下，基于PEG / H 2 O中Pd / Xphos-SO 3 Na或Pd / MeDavephos-CF 3 SO 3的新催化体系是该转化的最佳条件。还对钯催化剂体系的可回收性进行了研究，发现钯催化剂体系在九次运行中均具有活性，而活性没有明显损失。
• Iodocyclisation of Electronically Resistant Alkynes: Synthesis of 2-Carboxy (and sulfoxy)-3-iodobenzo[b]thiophenes
  作者：Shuqi Chen、Bernard L. Flynn

  DOI：10.1071/ch20218

  日期：——

  cyclisation, thus favouring competing addition reactions. Using our previously determined reaction conditions for the 5-endo-dig iodocyclisations of electronically resistant alkynes, we have achieved efficient synthetic access to 2-carboxy (and sulfoxy)-3-iodobenzo[b]thiophenes. The corresponding benzo[b]furans and indoles were not accessible under these conditions. This difference may arise due to the availability

  带有拴系亲核试剂的炔烃的碘环化是构建和多样化杂环的高效方法。该方法的主要局限性是炔类化合物的5 -endo-dig碘环化，它对亲电环化有不利的电子偏倚。这些趋向于将碘鎓原子的亲电子攻击指向错误的碳以进行环化，因此有利于竞争性加成反应。使用我们先前确定的用于电子耐性炔烃的5-内切式碘环化的反应条件，我们已经成功合成了2-羧基（和亚砜氧基）-3-碘代苯并[ b ]噻吩的合成途径。相应的苯并[ b在这些条件下无法获得呋喃和吲哚。这种差异可能是由于在碘代苯并[ b ]噻吩的情况下可利用自由基机理而引起的。碘环化产物的2-羧基官能度可进一步用于迭代炔烃偶联碘环化反应中，其中羧基或亚胺（席夫碱）参与第二次碘环化以生成内酯或吡啶环。
• Divergent Synthesis of Densely Substituted Arenes and Pyridines via Cyclotrimerization Reactions of Alkynyl Triazenes
  作者：Jin-Fay Tan、Carl T. Bormann、Florian G. Perrin、F. Mark Chadwick、Kay Severin、Nicolai Cramer

  DOI：10.1021/jacs.9b04111

  日期：2019.7.3

  aromatic triazenes can be prepared by [2 + 2 + 2] cyclotrimerization reactions of 1-alkynyl triazenes. The Cp*Ru-catalyzed cyclization proceeds well with both simple alkynyl triazenes and tethered 1-diynyl triazenes. Attractively, the methodology can be extended to pyridine synthesis by replacing an alkyne with a nitrile. The reaction is regioselective and yields the sterically more hindered product.

  通过1-炔基三氮烯的[2+2+2]环三聚反应，可以制备稠密取代的稠合芳族三氮烯。Cp*Ru 催化的环化对简单的炔基三氮烯和系链的 1-二炔基三氮烯都进行得很好。有吸引力的是，该方法可以通过用腈代替炔烃来扩展到吡啶合成。该反应具有区域选择性并产生空间位阻更大的产物。精确安装在合成的芳基和吡啶基环上的三氮烯基团是一个高度通用的部分，可以毫不费力地转化为最重要和最常用的功能性芳基取代基，包括氟化物。它也适用于分子内转化以提供各种有价值的杂环。研究了炔基三氮烯和 Cp*RuCl 的配位化学，并得出了 Cp*RuCl(η2-炔烃) 配合物、Cp*RuCl(η4-环丁二烯) 配合物和一种不寻常的具有桥连的双核 Ru 配合物的结构表征四甲基富烯配体。这种类型的配合物可能参与催化剂失活途径。
• Benziodoxole Triflate as a Versatile Reagent for Iodo(III)cyclization of Alkynes
  作者：Bin Wu、Junliang Wu、Naohiko Yoshikai

  DOI：10.1002/asia.201701530

  日期：2017.12.14

  Hyperactive: A benziodoxole triflate promotes iodo(III)cyclization of alkynes tethered to a variety of nucleophilic moieties, affording benziodoxole-appended (hetero)arenes such as benzofurans, benzothiophenes, isocoumarins, indoles, and polyaromatics. These unprecedented (hetero)aryl-IIII compounds are easy to purify, air- and thermally stable, and amenable to various synthetic transformations.

  过度活跃：苯并恶唑三氟甲磺酸酯可促进与多种亲核基团连接的炔烃的碘（III）环化，提供苯并恶唑烷（杂）芳烃，例如苯并呋喃，苯并噻吩，异香豆素，吲哚和聚芳烃。这些前所未有的（杂）芳基-I III化合物易于纯化，对空气和热稳定，并且可以进行各种合成转化。
• Catalyst-Free Formal Thioboration to Synthesize Borylated Benzothiophenes and Dihydrothiophenes
  作者：Darius J. Faizi、Ashlee J. Davis、Fiach B. Meany、Suzanne A. Blum

  DOI：10.1002/anie.201608090

  日期：2016.11.7

  isolated prior to downstream functionalization. This methodology has been extended to the synthesis of borylated dihydrothiophenes. Mechanistic experiments suggest that the operative mechanistic pathway is through boron‐induced activation of the alkyne followed by electrophilic cyclization, as opposed to S−B σ bond formation, providing a mechanistically distinct pathway to the thioboration of C−C π bonds.

  据报道，第一个C-Cπ键成环的硫代硼烷基化反应。这种无催化剂的方法可以在市售的外部亲电硼源（B-氯邻苯二甲硼烷）存在下进行，产率很高。该方法是可扩展的，并且可以忍受其他主要的硼酸酯化方法所不能忍受的各种官能团。所得的硼化苯并噻吩参与各种原位衍生化反应，表明这些硼化的中间体无需在下游官能化之前分离。该方法已经扩展到硼酸化的二氢噻吩的合成。机理实验表明，与SBσ键形成相反，其作用机理是通过硼诱导的炔烃活化，然后进行亲电环化，