(Z)-2-(2-溴乙烯基)吡啶 | 125142-06-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: (Z)-2-(2-溴乙烯基)吡啶
• 英文名称: (Z)-2-(2-bromovinyl)pyridine
• 英文别名: (Z)-2-(β-bromovinyl)pyridine；2-[(Z)-2-bromoethenyl]pyridine
• CAS: 125142-06-5
• 化学式: C₇H₆BrN
• 分子量: 184.035
• InChiKey: LYAQLPATOYFNDD-PLNGDYQASA-N

物化性质

• 密度：
  1.529
• 闪点：
  98℃

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (Z)-2-(2-溴乙烯基)吡啶 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 、 cesium fluoride 作用下， 以 甲醇 为溶剂， 反应 44.5h， 生成 (1'RS,2'SR)-ethyl 2-(Indolizin-3-yl)cyclopropanecarboxylate
  参考文献：
  名称：

  Experimental and Computational Exploration of Indolizinyl Carbene Generation. A Route to Biindolizines

  摘要：

  In previous work, (E)-2-enynyl. pyridines were reported to yield indolizinyl singlet carbenes through base-catalyzed E/Z isomerization followed by a 5-exo-dig pseudocoarctate cyclization. We report herein that in the presence of ethyl acrylate these carbenes undergo stereoselective cis-cyclopropanation due mainly to electrostatic interactions in the transition state. The scope of this carbene generation scheme has been further explored through the preparation of a symmetric bis(pyridylenyl)alkyne which spontaneously furnished the biindolizine core in a one-pot reaction. Computational characterization of this transformation suggests a highly asynchronous double cydization.

  DOI：

  10.1021/jo200157q
• 作为产物：
  描述：

  2-(三甲基硅基乙炔基)吡啶 在 氢溴酸 、 溶剂黄146 、 potassium hydroxide 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 13.0h， 生成 (Z)-2-(2-溴乙烯基)吡啶
  参考文献：
  名称：

  炔烃与溴化氢的均裂氢溴化反应区域和立体选择性合成溴代烯烃

  摘要：

  已经研究了用市售的溴化氢在乙酸中的溶液对末端和内部炔烃进行均裂氢溴化反应，以用于溴代烯烃的区域选择性和立体选择性合成。在室温下的有氧气氛下，乙炔基芳烃与少量过量的 HBr 反应有效地产生了具有良好至高E选择性的 (2-溴乙烯基) 芳烃。(Alk-1-ynyl) 芳烃或在 sp-碳上同时带有苯基和烷基的内部炔烃也经历了空气引发的溴化氢反应，在使用半当量 HBr 的动力学条件下表现出高Z选择性。

  DOI：

  10.1016/j.tet.2022.132687

文献信息

• Synthesis of Vinyl Trifluoromethyl Thioethers via Copper-Mediated Trifluoromethylthiolation of Vinyl Bromides
  作者：Yangjie Huang、Jianping Ding、Chuyi Wu、Huidong Zheng、Zhiqiang Weng

  DOI：10.1021/acs.joc.5b00144

  日期：2015.3.6

  trifluoromethylthiolation of vinyl bromides has been developed. This method provides ready access to vinyl trifluoromethyl thioethers in good to high yields from simple, inexpensive starting materials. A broad substrate scope is achieved, and the reaction is compatible with various functional groups, including cyano, nitro, trifluoromethyl, alkoxy, amino, halide, and heterocyclic groups.

  已经开发了铜介导的乙烯基溴的三氟甲基硫醇化。该方法提供了从简单，廉价的起始原料以高产率到高产率获得乙烯基三氟甲基硫醚的方法。获得了广泛的底物范围，并且该反应与各种官能团相容，包括氰基，硝基，三氟甲基，烷氧基，氨基，卤化物和杂环基团。
• Nickel(II)-Magnesium-Catalyzed Cross-Coupling of 1,1-Dibromo-1-alkenes with Diphenylphosphine Oxide: One-Pot Synthesis of (<i>E</i>)-1-Alkenylphosphine Oxides or Bisphosphine Oxides
  作者：Liu Liu、Yulei Wang、Zhiping Zeng、Pengxiang Xu、Yuxing Gao、Yingwu Yin、Yufen Zhao

  DOI：10.1002/adsc.201200853

  日期：2013.3.11

  A novel nickel(II)‐magnesium‐mediated cross‐coupling of diphenylphosphine oxide with a variety of 1,1‐dibromo‐1‐alkenes has been developed, which provides a powerful and general methodology for the stereoselective synthesis of various (E)‐1‐alkenylphosphine oxides or bisphosphine oxides, with operational simplicity of the procedure, good to high yields and broad substrate applicability. Mechanistic

  已开发出新颖的镍（II）-镁介导的二苯基膦氧化物与各种1,1-二溴-1-烯的交叉偶联反应，为各种（E）-的立体选择性合成提供了强大而通用的方法1-烯基氧化膦或双氧化膦，操作简便，具有良好的高收率和广泛的底材适用性。机理研究表明，该反应可能涉及Hirao还原，交叉偶联和Michael加成。
• Practical Synthesis of (<i>Z</i>)-Polyaromatic and Heteroaromatic Vinylacetylenes
  作者：Anthony Hayford、Joseph Kaloko、Salwa El-Kazaz、Gwen Bass、Cheryl Harrison、Thomas Corprew

  DOI：10.1021/ol0508173

  日期：2005.6.1

  [reaction: seet text] Two synthetic routes to several (Z)-polyaromatic and heteroaromatic substituted vinylacetylenes are described. The nature of aryl- or heteroaryl-substituted carboxaldehyde used as starting material dictated the choice of Wittig salt employed. A very attractive way to construct polyaromatic and pyridine-containing enynes is the reaction of polyaromatic and pyridine-containing aldehydes

  [反应：seet text]描述了到几种（Z）-聚芳族和杂芳族取代的乙烯基乙炔的两种合成路线。用作原料的芳基或杂芳基取代的甲醛的性质决定了所用维蒂希盐的选择。构造聚芳族和含吡啶的烯炔的一种非常有吸引力的方法是在叔丁醇钾存在下，聚芳族和含吡啶的醛与溴甲基三苯基溴化phosph的反应，然后进行Sonogashira甲硅烷基化反应（方法B）。
• Method for the synthesis of 3-substituted indolizine and benzoindolizine compounds
  申请人：Hayford Anthony

  公开号：US20060160770A1

  公开（公告）日：2006-07-20

  A method of making a compound of Formula I: comprises reacting a compound of Formula II with a compound such as R 1 OH or R 1 SH, to produce said compound of Formula I. Compounds of Formula I are useful, among other things, as dyes, spectral sensitizers, glycosidase inhibitors, and as antibacterial, antiviral, and anti-inflammatory agents.

  制备Formula I化合物的方法包括将Formula II化合物与诸如R1OH或R1SH的化合物反应，从而产生所述Formula I化合物。Formula I化合物可用作某些染料、光谱增敏剂、糖苷酶抑制剂以及抗菌、抗病毒和抗炎剂。
• A general and convenient synthetic method of geometrically pure (Z)-1-bromo-1-alkenes
  作者：Jun'ichi Uenishi、Reiko Kawahama、Yasuhiko Shiga、Osamu Yonemitsu、Jiro Tsuji

  DOI：10.1016/s0040-4039(96)01461-x

  日期：1996.9

  Palladium catalyzed hydrogenolysis of 1,1-dibromo-1-alkenes by tributyltin hydride proceeds smoothly to give (Z)-1-bromo-1-alkenes with excellent stereoselectivity in good yields. Dibromomethylenation of aldehydes by a combination of CBr4 and Ph3P in methylene chloride and the successive hydrogenolysis affords (Z)-1-bromo-1-alkenes in one-pot.

  氢化三丁基锡对钯催化的1,1-二溴-1-烯烃的氢解反应进行得很顺利，从而以良好的收率获得了具有出色立体选择性的（Z）-1-溴-1-烯烃。通过在二氯甲烷中将CBr 4和Ph 3 P组合进行醛的二溴甲基化，然后连续进行氢解，一锅得到（Z）-1-溴-1-烯烃。