(E)-β-chlorostyrene | 4110-77-4

• 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: (E)-β-chlorostyrene
• 英文别名: (E)-(2-chlorovinyl)benzene；beta-Chlorostyrene；[(E)-2-chloroethenyl]benzene
• CAS: 4110-77-4
• 化学式: C₈H₇Cl
• 分子量: 138.597
• InChiKey: SBYMUDUGTIKLCR-VOTSOKGWSA-N

物化性质

• 熔点：
  -23.4°C (estimate)
• 沸点：
  189.97°C (estimate)
• 密度：
  1.1095
• 保留指数：
  1030

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 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：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (E)-β-chlorostyrene 在 Pd-polymethylhydrosiloxane nanocomposite 氢气 作用下， 以 苯 为溶剂， 反应 6.0h， 以85%的产率得到邻氯乙苯
  参考文献：
  名称：

  “Polysiloxane-Pd” Nanocomposites as Recyclable Chemoselective Hydrogenation Catalysts

  摘要：

  Polysiloxane-encapsulated "Pd"-nanoclusters were generated by reduction of Pd(OAc)(2) with polymethylhydrosiloxane, which functions as a reducing agent as well as a capping material for production and stabilization of catalytically active "Pd"-nanoparticles. Chemoselective hydrogenation of functional conjugated alkenes was achieved by in-situ- or ex-situ-generated polysiloxane-stabilized "Pd"-nanoclusters under mild reaction conditions in high yields. Electron microscopy, UV-vis, and NMR studies of the reaction mixture during the catalytic transformation were performed and, in conjunction with catalyst poisoning experiments, demonstrated unequivocally the role of polysiloxane-encapsulated "Pd"-nanoclusters as the real catalytic species. The recyclability of the "Pd"-nanoclusters was established by reusing the solid left after the reaction.

  DOI：

  10.1021/ja049604j
• 作为产物：
  描述：

  (Z)-β-chlorostyrene 在 碘 作用下， 以 氯苯 为溶剂， 生成 (E)-β-chlorostyrene
  参考文献：
  名称：

  Prochazka, Milos; Adamcova, Jindriska; Palecek, Milos, Collection of Czechoslovak Chemical Communications, 1980, vol. 45, # 5, p. 1388 - 1400

  摘要：

  DOI：

文献信息

• Additives and products including oligoesters
  申请人：——

  公开号：US20030199593A1

  公开（公告）日：2003-10-23

  The present invention relates to oligoesters and their use or the creation of additives. Oligoester containing additives and/or oligoesters themselves may be used for formulating pharmaceutical preparations, cosmetics or personal care products such as shampoos and conditioners. These oligoesters are particularly useful for the creation of multi-purpose additives that can impart conditioning, long substantivity and/or UV protection. Individual oligoesters and oligoester mixtures are described.

  本发明涉及寡酯及其用途或添加剂的制备。含有寡酯的添加剂和/或寡酯本身可用于配制药物制剂、化妆品或个人护理产品，如洗发水和护发素。这些寡酯对于制备能够赋予调理、长效性和/或紫外线保护的多功能添加剂特别有用。描述了单独的寡酯和寡酯混合物。
• [EN] OXIME ESTER PHOTOINITIATORS<br/>[FR] PHOTO-INITIATEURS À BASE D'ESTER D'OXIME
  申请人：BASF SE

  公开号：WO2021175855A1

  公开（公告）日：2021-09-10

  Disclosed are α-oxo oxime ester compounds based on carbazole derivatives which have specific substituent groups useful as a photoinitiator, as well as photopolymerizable compositions comprising said photoinitiator and ethylenically unsaturated compounds. The photopolymerizable compositions are useful, for example, in photoresist formulations for display applications, e.g. liquid crystal display (LCD), organic light emitting diode (OLED) and touch panel.

  揭示了基于咔唑衍生物的α-氧代肟酯化合物，其具有特定取代基，可用作光引发剂，以及包括所述光引发剂和乙烯不饱和化合物的光聚合组合物。这些光聚合组合物可用于例如显示应用的光阻配方，例如液晶显示器（LCD）、有机发光二极管（OLED）和触摸面板。
• Development of a general copper-catalyzed vinylic Finkelstein reaction—application to the synthesis of the C1–C9 fragment of laingolide B
  作者：Antoine Nitelet、Kévin Jouvin、Gwilherm Evano

  DOI：10.1016/j.tet.2016.07.018

  日期：2016.10

  conditions compatible with a range of highly functionalized substrates. The potential of this vinylic halogen exchange reaction in total synthesis and medicinal chemistry was demonstrated by its successful use for the synthesis of the C1–C9 fragment of laingolide B and for the late-stage modification of drug-like molecules. The extension of this halogen exchange to the acetylenic and allenic Finkelstein

  据报道，铜催化的乙烯基芬克尔斯坦反应的一种有效且广泛适用的方法。使用简单，易于获得且便宜的催化系统，可以将各种烯基碘化物和溴化物平稳地转化为它们的较低同系物，并具有高收率并完全保留双键的几何形状。这种乙烯基Finkelstein反应的关键特征是其广泛的适用性，使易得的链烯基碘化物转化为难得的溴代和氯代对应物，并且温和的反应条件与一系列高度官能化的底物相容。这种乙烯基卤素交换反应在全合成和药物化学中的潜力已通过成功地用于合成Laingolide B的C1-C9片段以及对药物样分子进行后期修饰而得到证明。还报道了这种卤素交换扩展到炔属和烯属的Finkelstein反应。
• Cu2O-catalyzed Ullmann-type reaction of vinyl bromides with imidazole and benzimidazole
  作者：Guodong Shen、Xin Lv、Weixing Qian、Weiliang Bao

  DOI：10.1016/j.tetlet.2008.04.163

  日期：2008.7

  Cu2O was found to be an efficient and economical metal catalyst in the Ullmann cross-coupling reaction of vinyl bromides with imidazole or benzimidazole. The system Cu2O/ethyl 2-oxocyclohexanecarboxylate showed high catalytic activity in MeCN at 80–90 °C. The reaction gave the corresponding coupling products in good to excellent yields.

  在乙烯基溴与咪唑或苯并咪唑的Ullmann交叉偶联反应中，发现Cu 2 O是一种有效且经济的金属催化剂。Cu 2 O / 2-氧代环己烷甲酸乙酯体系在80–90°C的MeCN中显示出高催化活性。该反应以良好至优异的产率得到相应的偶联产物。
• Nickel-catalyzed enantioselective 1,2-vinylboration of styrenes
  作者：Yang Ye、Jiandong Liu、Bing Xu、Songwei Jiang、Renren Bai、Shijun Li、Tian Xie、Xiang-Yang Ye

  DOI：10.1039/d1sc04071e

  日期：——

  A novel nickel-catalyzed asymmetric 1,2-vinylboration reaction has been developed to afford benzylic alkenylboration products with high yields and excellent enantioselectivities by using a chiral bisoxazoline ligand. Under optimized conditions, a wide variety of chiral 2-boryl-1,1-arylvinylalkanes are efficiently prepared from readily available olefins and vinyl halides in the presence of bis(pinacolato)diboron

  通过使用手性双恶唑啉配体，开发了一种新型镍催化的不对称 1,2-乙烯基硼化反应，以提供具有高产率和优异对映选择性的苄基烯基硼化产物。在优化的条件下，在双(频哪醇)二硼作为硼源的情况下，在温和且易于操作的条件下，从易得的烯烃和乙烯基卤化物有效地制备各种手性 2-硼基-1,1-芳基乙烯基烷烃方式。这种三组分级联协议提供了卓越的化学和立体选择性，其在几种结构复杂的天然产物和药物的不对称修饰中的应用说明了其有用性。

表征谱图