2-(3,4-ethylenedioxythienyl)acetonitrile | 204905-81-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-(3,4-ethylenedioxythienyl)acetonitrile
• 英文别名: 2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)acetonitrile
• CAS: 204905-81-7
• 化学式: C₈H₇NO₂S
• 分子量: 181.215
• InChiKey: ZAFKPLAYMMZOEP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  70.5
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3,4-乙撑基二氧甲醛噻吩 、 2-(3,4-ethylenedioxythienyl)acetonitrile 在 potassium tert-butylate 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以87%的产率得到1-cyano-1,2-bis(2-(3,4-ethylenedioxythienyl))vinylene
  参考文献：
  名称：

  Donor-Mediated Band Gap Reduction in a Homologous Series of Conjugated Polymers

  摘要：

  A family of six donor-acceptor-donor monomers was synthesized using combinations of thiophene, 3,4-ethylenedioxythiophene and 3,4-ethylenedioxypyrrole as donor moieties, and cyanovinylene as the acceptor moiety, to understand the effects of modified donor ability on the optoelectronic and redox properties of the resulting electropolymerized materials. Spectroelectrochemistry, differential pulse voltammetry, and cyclic voltammetry results indicate band gaps ranging from 1.1 to 1.6 eV and suggest that these polymers can be both p-type and n-type doped at accessible potentials. In situ conductivity results indicate that the n-type conductivity magnitude is modest, and the conductivity profile indicates a redox conductivity mechanism as opposed to a delocalized electronic band mechanism as observed for p-type doping.

  DOI：

  10.1021/ja048637w
• 作为产物：
  描述：

  3,4-乙烯二氧噻吩 、 溴乙腈 在 正丁基锂 、 zinc(II) chloride 、 bis(acetylacetonate)nickel(II) 、 二苯基环己基膦 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 以33%的产率得到2-(3,4-ethylenedioxythienyl)acetonitrile
  参考文献：
  名称：

  Donor-Mediated Band Gap Reduction in a Homologous Series of Conjugated Polymers

  摘要：

  A family of six donor-acceptor-donor monomers was synthesized using combinations of thiophene, 3,4-ethylenedioxythiophene and 3,4-ethylenedioxypyrrole as donor moieties, and cyanovinylene as the acceptor moiety, to understand the effects of modified donor ability on the optoelectronic and redox properties of the resulting electropolymerized materials. Spectroelectrochemistry, differential pulse voltammetry, and cyclic voltammetry results indicate band gaps ranging from 1.1 to 1.6 eV and suggest that these polymers can be both p-type and n-type doped at accessible potentials. In situ conductivity results indicate that the n-type conductivity magnitude is modest, and the conductivity profile indicates a redox conductivity mechanism as opposed to a delocalized electronic band mechanism as observed for p-type doping.

  DOI：

  10.1021/ja048637w

文献信息

• Photochemical generation of radicals from alkyl electrophiles using a nucleophilic organic catalyst
  作者：Bertrand Schweitzer-Chaput、Matthew A. Horwitz、Eduardo de Pedro Beato、Paolo Melchiorre

  DOI：10.1038/s41557-018-0173-x

  日期：2019.2

  extensively use free radical reactivity for applications in organic synthesis, materials science, and life science. Traditionally, generating radicals requires strategies that exploit the bond dissociation energy or the redox properties of the precursors. Here, we disclose a photochemical catalytic approach that harnesses different physical properties of the substrate to form carbon radicals. We use a nucleophilic

  化学家在有机合成，材料科学和生命科学中广泛使用自由基反应性。传统上，产生自由基需要利用键解离能或前体的氧化还原特性的策略。在这里，我们公开了一种光化学催化方法，该方法利用了基材的不同物理特性来形成碳自由基。我们使用亲核性的二硫代氨基甲酸酯阴离子催化剂，配以量身定制的发色单元，以通过S N 2途径活化烷基亲电体。所得的吸收光子的中间体在由可见光诱导的均相裂解时提供自由基。此催化性S N基于2的策略利用了离子化学的基本机理过程，可以从各种底物中获得与经典自由基生成策略不兼容或惰性的开壳中间体的访问权限。我们还描述了该方法温和的反应条件和较高的官能团耐受性如何有利于开发C–C键形成反应，简化市售药物的制备，生物相关化合物的后期精制以及对映选择性自由基催化。
• Electrochromic polymers and polymer electrochromic devices
  申请人：University of Florida

  公开号：US20030174377A1

  公开（公告）日：2003-09-18

  The subject invention pertains to electrochromic polymers and polymer electrochromic devices. In a specific embodiment, two complementary polymers can be matched and incorporated into dual polymer electrochromic devices. The anodically coloring polymers in accordance with the subject invention can allow control over the color, brightness, and environmental stability of an electrochromic window. In addition, high device contrast ratios, high transmittance changes, and high luminance changes can be achieved, along with half-second switching times for full color change. Also provided are electrochromic devices such as advertising signage, video monitors, stadium scoreboards, computers, announcement boards, warning systems for cell phones, warning/information systems for automobiles, greeting cards, electrochromic windows, billboards, electronic books, and electrical wiring. The subject invention also provides for the use of complementary electrochromic polymers in the manufacture of electrochromic devices. In some embodiments, the devices of the invention can be prepared using metal vapor deposition or line patterning.

  本发明涉及电致变色聚合物和聚合物电致变色器件。在一个特定的实施例中，可以将两种互补的聚合物配对并纳入双聚合物电致变色器件中。根据本发明的阳极着色聚合物可以允许控制电致变色窗户的颜色、亮度和环境稳定性。此外，可以实现高对比度比、高透射率变化和高亮度变化，以及半秒钟的全彩色变换时间。还提供了电致变色器件，例如广告标志、视频监视器、体育场记分牌、计算机、公告牌、手机警告系统、汽车警告/信息系统、贺卡、电致变色窗户、广告牌、电子书和电气布线。本发明还提供了在制造电致变色器件时使用互补电致变色聚合物的方法。在一些实施例中，可以使用金属蒸汽沉积或线路图案制备本发明的器件。
• 3,4-Alkylenedioxypyrroles:  Functionalized Derivatives as Monomers for New Electron-Rich Conducting and Electroactive Polymers
  作者：Kyukwan Zong、John R. Reynolds

  DOI：10.1021/jo001620l

  日期：2001.10.1

  New functionalized derivatives of 3,4-ethylenedioxypyrrole (EDOP, 5a) and 3,4-(1,3-propylenedioxy)-pyrrole (ProDOP, 5b) as especially electron-rich monomers which yield highly electroactive and stable conducting polymers useful for a diverse set Of applications have been synthesized. N-Alkylations of ProDOP were carried out to yield a variety of ProDOP derivatives having alkyl, sulfonatoalkoxy, glyme, and glyme alcohol pendant chains. Iodization of EDOP and ProDOP via iodo-decarboxylation afforded iodo-functionalized derivatives useful for subsequent aryl coupling chemistry. N-Protection and formylation of EDOP, followed by Knoevenagel condensation of the resultant 2-formyl-EDOP with aryl acetonitrile derivatives, led to 1-cyano-2-(2-(3,4-ethylenedioxy-pyrryl))-1-(2-thienyl)vinylene (23) (Th-CNV-EDOP) and 1-cyano-2-(2-(3,4-ethylenedioxypyrryl))-1-(2-(3,4-ethylenedioxythienyl)vinylene (26) (EDOT-CNV-EDOP). A 14-crown-4-ether 34 based dioxypyrrole was synthesized with a cavity potentially useful for lithium ion coordination and sensing in the resultant electroactive polymer. C-Alkylated ProDOPs (43a, 43b, and 43c) containing octyl, ethylhexyl, and dioctyl substituents appended to the central methylene of the propylene bridge, were prepared as monomers for potentially soluble pi -conjugated polymers.
• ELECTROCHROMIC POLYMERS AND POLYMER ELECTROCHROMIC DEVICES
  申请人：University of Florida

  公开号：EP1465962A1

  公开（公告）日：2004-10-13
• US6791738B2
  申请人：——

  公开号：US6791738B2

  公开（公告）日：2004-09-14