1-乙酰基-5-甲氧基-1H-苯并咪唑 | 79938-46-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 中文名称: 1-乙酰基-5-甲氧基-1H-苯并咪唑
• 英文名称: 1-acetyl-5-methoxybenzimidazole
• 英文别名: 1-(5-Methoxy-1H-benzo[d]imidazol-1-yl)ethanone；1-(5-methoxybenzimidazol-1-yl)ethanone
• CAS: 79938-46-8
• 化学式: C₁₀H₁₀N₂O₂
• mdl: MFCD08669516
• 分子量: 190.202
• InChiKey: PWFQBNYDCVSWMJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  44.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-乙酰基-5-甲氧基-1H-苯并咪唑 、 氢化铝锂 以92%的产率得到
  参考文献：
  名称：

  TANAKA, KENJIRO;INO, MICHIKO;MURAKAMI, YASUOKI, CHEM. AND PHARM. BULL., 1981, 29, N 7, 1876-1886

  摘要：

  DOI：
• 作为产物：
  描述：

  1-acetyl-5-methoxybenzimidazolethiol 在 镍 作用下， 以 乙酸乙酯 为溶剂， 反应 0.83h， 以63.6%的产率得到1-乙酰基-5-甲氧基-1H-苯并咪唑
  参考文献：
  名称：

  Tanaka, Kenjiro; Shimazaki, Michiko; Murakami, Yasuoki, Chemical and pharmaceutical bulletin, 1982, vol. 30, # 8, p. 2714 - 2722

  摘要：

  DOI：

文献信息

• Cyclization of ((4- or 5-substituted-2-benzimidazolyl)thio)acetic acids. Isolation and identification of two possible isomers of substituted thiazolo(3,2-a)benzimidazol-3(2H)-one.
  作者：KENJIRO TANAKA、MICHIKO INO、YASUOKI MURAKAMI

  DOI：10.1248/cpb.29.1876

  日期：——

  Cyclizations of [(5-substituted-2-benzimidazolyl) thio] acetic acid (2a-e) to the corresponding thiazolo [3, 2-a] benzimidazol-3 (2H)-one (5 and 6) were successfully carried out by heating 2a-e in Dowtherm A or Ac2O/pyridine, and gave the two possible isomers (5a-e and 6a-e) in a ratio of nearly 1 : 1 in all cases. Separation of 5 and 6 was successfully carried out, and their structures (namely, the direction of cyclization) were suggested on the basis of the NMR spectra. Dowtherm A was more effective than Ac2O/pyridine, particularly for the cyclization of [(5-nitro-2-benzimidazolyl) thio] acetic acid (2a), which had been reported not to be cyclized with other reagents. Similar cyclization of [(4-methyl-2-benzimidazolyl) thio] acetic acid (2f) preferentially gave 8-methylthiazolo [3, 2-a]-benzimidazol-3 (2H)-one (6f).

  将[(5-取代-2-苯并咪唑基)硫代]乙酸(2a-e)加热环化成相应的噻唑并[3,2-a]苯并咪唑-3(2H)-酮(5和6)的反应已经成功实施，使用Dowtherm A或Ac2O/吡啶作为溶剂，并且在这两种情况下，均以近似1:1的比例得到了两种可能的异构体(5a-e和6a-e)。成功分离了5和6，并根据NMR谱图推断出了它们的结构，即环化的方向。Dowtherm A比Ac2O/吡啶更为有效，尤其是对于[(5-硝基-2-苯并咪唑基)硫代]乙酸(2a)，此前有报道指出它不能用其他试剂环化。类似的环化反应中，[(4-甲基-2-苯并咪唑基)硫代]乙酸(2f)优先形成了8-甲基噻唑并[3,2-a]苯并咪唑-3(2H)-酮(6f)。
• NONAQUEOUS ELECTROLYTE AND NONAQUEOUS SECONDARY BATTERY
  申请人：ASAHI KASEI KABUSHIKI KAISHA

  公开号：EP3467930A1

  公开（公告）日：2019-04-10

  The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having an excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and increases in internal resistance upon repeated charge/discharge cycles are suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by benzotriazole.

  本发明的目的是提供一种非水电解液，该电解液含有在粘度和介电常数之间具有极佳平衡的乙腈和含氟无机锂盐，其中包含过渡金属和乙腈的复合阳离子的生成受到抑制，显示出极佳的负载特性，并且在重复充放电循环中内阻的增加受到抑制；本发明的另一个目的是提供一种非水二次电池。本发明涉及一种非水电解液，其中包含：由乙腈组成的非水溶剂；含氟无机锂盐；以及以苯并三唑为典型代表的特定含氮环状化合物。
• Nonaqueous electrolyte and nonaqueous secondary battery
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：US10756394B2

  公开（公告）日：2020-08-25

  The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having an excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and increases in internal resistance upon repeated charge/discharge cycles are suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by benzotriazole.

  本发明的目的是提供一种非水电解液，该电解液含有在粘度和介电常数之间具有极佳平衡的乙腈和含氟无机锂盐，其中包含过渡金属和乙腈的复合阳离子的生成受到抑制，显示出极佳的负载特性，并且在重复充放电循环中内阻的增加受到抑制；本发明的另一个目的是提供一种非水二次电池。本发明涉及一种非水电解液，其中包含：由乙腈组成的非水溶剂；含氟无机锂盐；以及以苯并三唑为典型代表的特定含氮环状化合物。
• TANAKA, KENJIRO;SHIMAZAKI, (NEE, INO), MICHIKO;MURAKAMI, YASUOKI, CHEM. AND PHARM. BULL., 1982, 30, N 8, 2714-2722
  作者：TANAKA, KENJIRO、SHIMAZAKI, (NEE, INO), MICHIKO、MURAKAMI, YASUOKI

  DOI：——

  日期：——
• Nonaqueous Electrolyte and Nonaqueous Secondary Battery
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：US20180062213A1

  公开（公告）日：2018-03-01

  The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having an excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and increases in internal resistance upon repeated charge/discharge cycles are suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by benzotriazole.