((benzylthio)ethynyl)triisopropylsilane | 1443746-46-0

• 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: ((benzylthio)ethynyl)triisopropylsilane
• 英文别名: 2-Benzylsulfanylethynyl-tri(propan-2-yl)silane
• CAS: 1443746-46-0
• 化学式: C₁₈H₂₈SSi
• 分子量: 304.572
• InChiKey: FRSNIKMDOUZSIR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  20
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  25.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  三异丙基氯硅烷 在 正丁基锂 、 三乙胺 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 2.74h， 生成 ((benzylthio)ethynyl)triisopropylsilane
  参考文献：
  名称：

  A Highly Chemoselective and Practical Alkynylation of Thiols

  摘要：

  A thiol-alkynylation procedure utilizing the hypervalent iodine alkyne transfer reagent TIPS-ethynyl-benziodoxolone has been developed. This scalable reaction proceeds in five minutes at room temperature in an open flask using commercially available reagents. The scope of the reaction is broad, with a variety of phenolic, benzylic, heterocyclic, and aliphatic thiols undergoing alkynylation in excellent yield. The method is highly chemoselective as a vast array of functional groups are tolerated. The utility of the thiol-alkynylation in postsynthetic elaboration has been demonstrated through the facile installment of a fluorophore tag on a cysteine-containing peptide.

  DOI：

  10.1021/ja4044196

文献信息

• Copper-Catalyzed Oxyalkynylation of C–S Bonds in Thiiranes and Thiethanes with Hypervalent Iodine Reagents
  作者：Julien Borrel、Guillaume Pisella、Jerome Waser

  DOI：10.1021/acs.orglett.9b04157

  日期：2020.1.17

  We report the oxyalkynylation of thiiranes and thietanes using ethynylbenziodoxolone reagents (EBXs) to readily access functionalized building blocks bearing an alkynyl, a benzoate, and an iodide group. The reaction proceeds with high atom efficiency most likely through an alkynyl-episulfonium intermediate. The transformation is copper-catalyzed and compatible with a large array of thiiranes and thietanes

  我们报告使用乙炔基苯并恶唑啉酮试剂（EBXs）来容易地获得带有炔基，苯甲酸酯和碘化物基团的功能化构建基团，从而对噻喃类和硫杂环丁烷进行烷氧基化反应。该反应最有可能通过炔基-is鎓中间体以高原子效率进行。该转化是铜催化的，并且与大量的噻喃和噻吨并存兼容。
• Photochemical Functionalization of Heterocycles with EBX Reagents: C−H Alkynylation versus Deconstructive Ring Cleavage**
  作者：Errika Voutyritsa、Marion Garreau、Maroula G. Kokotou、Ierasia Triandafillidi、Jérôme Waser、Christoforos G. Kokotos

  DOI：10.1002/chem.202002868

  日期：2020.11.11

  The development of novel methodologies for the functionalization of saturated heterocycles is highly desirable. Herein, we report a cheap and efficient photochemical method for the C−H functionalization of saturated O‐heterocycles, as well as the deconstructive ring‐cleavage of S‐heterocycles, employing hypervalent iodine alkynylation reagents (ethynylbenziodoxolones, EBX). This photochemical alkynylation

  非常需要开发用于饱和杂环官能化的新方法。本文中，我们报告了一种便宜且有效的光化学方法，用于使用饱和的O-炔基化试剂（乙炔基苯并zio恶唑，EBX）对饱和O-杂环的C-H功能化以及S-杂环的解构环裂解。该光化学炔化反应是利用苯基乙醛酸作为光引发剂，在家用荧光灯的照射下以高至高收率得到相应的产物。当使用O-杂环时，发生了预期的α-C-H炔基化反应。相反，在S-杂环上观察到氧化性开环形成硫代炔烃和醛。
• Alkynylation of Thiols with Ethynylbenziodoxolone (EBX) Reagents: α- or β- π-Addition?
  作者：Matthew D. Wodrich、Paola Caramenti、Jerome Waser

  DOI：10.1021/acs.orglett.5b03241

  日期：2016.1.4

  The alkynylation of thiols with EthynylBenziodoXolone (EBX) reagents is a fast and chemoselective method for the synthesis of thioalkynes. Combined experimental and computational studies are reported, which led to the identification of a new mechanism for this reaction, proceeding via an initial sulfur–iodine interaction followed by β-addition, α-elimination, and a 1,2-shift. Depending on the substituent

  乙炔与乙炔基异戊二烯酮（EBX）试剂对硫醇进行烷基化是一种快速且化学选择性的方法，用于合成硫代炔烃。据报道，结合了实验和计算研究，从而确定了该反应的新机理，首先进行了硫-碘相互作用，然后进行β-加成，α-消除和1,2-移位。取决于炔烃上的取代基，该机理可能优于先前公开的一致的α-加成途径。