ethyl 1-methyl-2-(trifluoromethyl)-1H-benzo[d]imidazole-5-carboxylate | 1422701-21-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: ethyl 1-methyl-2-(trifluoromethyl)-1H-benzo[d]imidazole-5-carboxylate
• 英文别名: ethyl 1-methyl-2-(trifluoromethyl)benzimidazole-5-carboxylate
• CAS: 1422701-21-0
• 化学式: C₁₂H₁₁F₃N₂O₂
• 分子量: 272.227
• InChiKey: WXQOFGLGCFHBSA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  44.1
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  3-氨基-4-(甲胺基)苯甲酸乙酯 、 三氟乙酸 反应 16.0h， 以99%的产率得到ethyl 1-methyl-2-(trifluoromethyl)-1H-benzo[d]imidazole-5-carboxylate
  参考文献：
  名称：

  Efficient syntheses of 2-fluoroalkylbenzimidazoles and -benzothiazoles

  摘要：

  We report an efficient one-step route to 2-fluoroalkylbenzimidazoles and -benzothiazoles via the condensation of fluorinated carboxylic acids and aromatic diamines or aminothiophenols. Additionally, we describe the syntheses of fluoroalkyl-azabenzimidazoles, -purines, and -imidazolopyrazines. This method is high-yielding with broad scope and is operationally simple with potential application to parallel synthesis. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.09.069

文献信息

• Synthesis of 2-trifluoromethyl benzimidazoles, benzoxazoles, and benzothiazoles <i>via</i> condensation of diamines or amino(thio)phenols with CF₃CN
  作者：Bo Lin、Yunfei Yao、Minze Wu、Lu Qin、Shouxiong Chen、Yi You、Zhiqiang Weng

  DOI：10.1039/d3ob00517h

  日期：——

  method is developed for the synthesis of 2-trifluoromethyl benzimidazoles, benzoxazoles, and benzothiazoles in good to excellent yields by the condensation of diamines or amino(thio)phenols with in situ generated CF3CN. Additionally, the synthetic utility of the 2-trifluoromethyl benzimidazole and benzoxazole products is demonstrated via gram scale synthesis. The mechanistic study suggests that the reaction

  通过二胺或氨基（硫代）酚与原位生成的 CF 3 CN 的缩合，开发了一种新的有效方法，以良好至极好的收率合成 2-三氟甲基苯并咪唑、苯并恶唑和苯并噻唑。此外，通过克级合成证明了 2-三氟甲基苯并咪唑和苯并恶唑产品的合成效用。机理研究表明，该反应通过三氟乙腈与二胺衍生物的氨基进行亲核加成反应，形成亚胺中间体，然后进行分子内环化。