5-(4-(methoxycarbonyl)phenyl)thiophene-2-carboxylic acid ethyl ester | 1404074-55-0

• 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: 5-(4-(methoxycarbonyl)phenyl)thiophene-2-carboxylic acid ethyl ester
• 英文别名: ethyl 5-(4-methoxycarbonylphenyl)thiophene-2-carboxylate
• CAS: 1404074-55-0
• 化学式: C₁₅H₁₄O₄S
• 分子量: 290.34
• InChiKey: CMAUOBPZZACOEQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.38
• 重原子数：
  20.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  52.6
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为产物：
  描述：

  5-溴噻吩-2-甲酸乙酯 、 4-碘苯甲酸甲酯 在 potassium phosphate 作用下， 以 N,N-二甲基乙酰胺 为溶剂， 反应 24.0h， 以83%的产率得到5-(4-(methoxycarbonyl)phenyl)thiophene-2-carboxylic acid ethyl ester
  参考文献：
  名称：

  Visible light induced cross-coupling synthesis of asymmetrical heterobiaryls using Pd/CeO2 nanocomposite photocatalyst

  摘要：

  A simple, mild and green approach has been developed for the synthesis of asymmetrical heterobiaryls under the irradiation of visible light without any oxidants and promoting reagents through using Pd/CeO2 nanocomposite photocatalyst. This method can tolerate considerable functional groups such as electron donating groups and electron-withdrawing groups through C-C cross-coupling. Moreover, we obtain the products with moderate yields in an efficient way. Finally, a plausible mechanism is proposed. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.cclet.2018.01.002

文献信息

• Solvent-Free Palladium-Catalyzed Direct Arylation of Heteroaromatics with Aryl Bromides
  作者：Souhila Bensaid、Henri Doucet

  DOI：10.1002/cssc.201100771

  日期：2012.8

  course of catalyzed direct arylations. Some palladium‐catalyzed direct arylations of heteroaromatics can be advantageously performed without any solvent. In the presence of palladium catalysts (1 mol %) and potassium acetate as the base, the direct 5‐arylation of some thiazoles, thiophenes, furans, or pyrroles with aryl bromides as coupling partners proceeds highly regioselectively and in moderate to

  在催化的直接芳基化过程中，溶剂是浪费的主要来源之一。一些钯催化的杂芳族化合物的直接芳基化反应可方便地在没有任何溶剂的情况下进行。在钯催化剂（1 mol％）和乙酸钾为碱的情况下，一些噻唑，噻吩，呋喃或吡咯与芳基溴化物作为偶合伙伴直接进行5芳基化，具有高度的区域选择性和中等至高收率。但是，这些无溶剂条件的使用仅限于缺电子的芳基溴化物。