2-(2,4,6-Trimethoxyphenyl)thiophene | 1335213-08-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2-(2,4,6-Trimethoxyphenyl)thiophene
• 英文别名: 2-(2,4,6-trimethoxyphenyl)thiophene
• CAS: 1335213-08-5
• 化学式: C₁₃H₁₄O₃S
• 分子量: 250.318
• InChiKey: IGIIYJSLNDZVNP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  55.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  三乙氧基-2-噻吩硅烷 、 2,4,6-三甲氧基苯甲酸 在 palladium(II) trifluoroacetate 、 N-benzyl-N-[2-(dibenzylhydrazinylidene)ethylideneamino]-1-phenylmethanamine 、 silver fluoride 作用下， 以 N,N-二甲基乙酰胺 为溶剂， 反应 2.0h， 以10%的产率得到2-(2,4,6-Trimethoxyphenyl)thiophene
  参考文献：
  名称：

  Palladium-catalyzed decarboxylative coupling of benzoic acid derivatives using hydrazone ligands

  摘要：

  Palladium-catalyzed decarboxylative coupling of benzoic acid derivatives with arylboroxins gave biaryls using a catalytic amount of Pd(TFA)(2)-hydrazone Id system with Ag2CO3 at 80 degrees C in good yields. We also found that decarboxylative coupling with aryl(trialkoxy)silanes gave biaryls using a Pd(TFA)(2)-hydrazone 1g system with AgF in good yields. 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2014.04.017

文献信息

• Negishi cross-coupling reaction catalyzed by an aliphatic, phosphine based pincer complex of palladium. biaryl formation via cationic pincer-type PdIV intermediates
  作者：Roman Gerber、Olivier Blacque、Christian M. Frech

  DOI：10.1039/c1dt10398a

  日期：——

  The aliphatic, phosphine-based pincer complex [(C10H13-1,3-(CH2P(Cy2)2)Pd(Cl)] (1) is a highly active Negishi catalyst, enable to quantitatively couple various electronically activated, non-activated, deactivated, sterically hindered and functionalized aryl bromides with various diarylzinc reagents within short reaction times and low catalyst loadings. Experimental observations strongly indicate that

  脂族，基于膦的钳形配合物[（C 10 H 13 -1,3-（CH 2 P（Cy 2）2）Pd（Cl）]]（1）是一种高活性Negishi催化剂，能够定量偶联各种电子在短反应时间和低催化剂负载下，用各种二芳基锌试剂活化，未活化，失活，位阻和官能化的芳基溴化物的实验结果强烈表明，分子机理在初始氯离解为1并形成阳离子T-时是有效的成形14E -配合物[（C 10 H ^ 13 -1,3-（CH 2 P（C6 H 11） 2） 2）Pd] +（ B），然后对其进行氧化加成芳基溴（Ar'Br），得到阳离子型五配位芳基溴钳形配合物[（C 10 H 13 -1） ，3-（CH 2 P（Cy 2） 2）Pd（Br）（芳基'）] +（ C），金属中心处于+ IV氧化态，芳基单元相对于脂肪族钳形核处于顺式位置。随后用Zn（芳基） 2进行金属转移，生成了[[C 10 H13 -1,3-（CH 2 P（Cy 2）
• DYE-SENSITIZED SOLAR CELL AND SENSITIZING DYE
  申请人：Han Liyuan

  公开号：US20140202537A1

  公开（公告）日：2014-07-24

  Provided is a dye-sensitized solar cell in which the energy conversion efficiency is increased by adsorbing two different kinds of dyes to the surface of titanium oxide that constitutes a semiconductor electrode. In a dye-sensitized solar cell including a conductive support, a porous semiconductor layer having sensitizing dyes adsorbed onto this conductive support, a carrier transport layer and a counter electrode, the energy conversion efficiency is increased by adsorbing a mixture of a ruthenium complex, and an organic dye having a different molecular size and exhibiting a high open circuit voltage as a photoelectric conversion characteristic obtainable by the dye alone, onto the porous semiconductor layer.

  提供的是一种染料敏化太阳能电池，其中通过将两种不同的染料吸附到构成半导体电极的二氧化钛表面来提高能量转换效率。在包括导电支撑、具有敏化染料吸附到该导电支撑上的多孔半导体层、载流子传输层和对电极的染料敏化太阳能电池中，通过将一种钌配合物和一种具有不同分子大小且表现出高开路电压作为仅染料本身可获得的光电转换特性的有机染料的混合物吸附到多孔半导体层上，提高了能量转换效率。
• Palladium-catalyzed decarboxylative coupling of benzoic acid derivatives using hydrazone ligands
  作者：Takashi Mino、Eri Yoshizawa、Kohei Watanabe、Taichi Abe、Kiminori Hirai、Masami Sakamoto

  DOI：10.1016/j.tetlet.2014.04.017

  日期：2014.5

  Palladium-catalyzed decarboxylative coupling of benzoic acid derivatives with arylboroxins gave biaryls using a catalytic amount of Pd(TFA)(2)-hydrazone Id system with Ag2CO3 at 80 degrees C in good yields. We also found that decarboxylative coupling with aryl(trialkoxy)silanes gave biaryls using a Pd(TFA)(2)-hydrazone 1g system with AgF in good yields. 2014 Elsevier Ltd. All rights reserved.