1-苄基-3-甲基咪唑硫酸氢盐 | 956597-95-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 1-苄基-3-甲基咪唑硫酸氢盐
• 英文名称: 1-benzyl-3-methylimidazolium hydrogen sulfate
• 英文别名: 1-Benzyl-3-methyl imidazolium hydrogen sulphate；1-benzyl-3-methylimidazol-3-ium;hydrogen sulfate
• CAS: 956597-95-8
• 化学式: C₁₁H₁₃N₂*HO₄S
• 分子量: 270.309
• InChiKey: DTUMQIQBJNETRJ-UHFFFAOYSA-M

物化性质

• 密度：
  1.363 g/cm3(Temp: 25 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  0.37
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  94.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1-苄基-3-甲基咪唑硫酸氢盐 在 氯磺酸 作用下， 以 二氯甲烷 为溶剂， 生成 1-methyl-3-(4-sulfobenzyl)-1H-imidazol-3-ium hydrogen sulfate
  参考文献：
  名称：

  Ultrasound-assisted solvent-free synthesis of lactic acid esters in novel SO3H-functionalized Brønsted acidic ionic liquids

  摘要：

  Mild and efficient Fischer esterification reactions of lactic acid with a variety of straight chain aliphatic alcohols, cyclohexanol and benzyl alcohol were successfully performed using two novel Bronsted acidic ionic liquids that bear an aromatic sulfonic acid group on the imidazolium or pyridinium cation under ultrasound irradiation. These reactions carried out smoothly with good to excellent conversion rate (78-96%) and satisfactory yields (73-92%) in shorter reaction time (4-6 h) at room temperature when the amount of ionic liquids was 20 mol%. These ionic liquids could be recovered readily and recycled five times without any significant loss in their catalytic activity. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ultsonch.2010.02.004
• 作为产物：
  描述：

  1-苄基-3-甲基咪唑氯盐 在 硫酸 作用下， 生成 1-苄基-3-甲基咪唑硫酸氢盐
  参考文献：
  名称：

  Ultrasound-assisted solvent-free synthesis of lactic acid esters in novel SO3H-functionalized Brønsted acidic ionic liquids

  摘要：

  Mild and efficient Fischer esterification reactions of lactic acid with a variety of straight chain aliphatic alcohols, cyclohexanol and benzyl alcohol were successfully performed using two novel Bronsted acidic ionic liquids that bear an aromatic sulfonic acid group on the imidazolium or pyridinium cation under ultrasound irradiation. These reactions carried out smoothly with good to excellent conversion rate (78-96%) and satisfactory yields (73-92%) in shorter reaction time (4-6 h) at room temperature when the amount of ionic liquids was 20 mol%. These ionic liquids could be recovered readily and recycled five times without any significant loss in their catalytic activity. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ultsonch.2010.02.004

文献信息

• Redox Reaction: A New Route for the Synthesis of Water-Miscible Imidazolium Ionic Liquids
  作者：Zhigang Zhang、Wenxiu Li、Shangwu Dai、Dong Li、Qinqin Zhang、Hongtao Fan、Tao Zhang

  DOI：10.1055/s-0036-1589402

  日期：——

  but also simplifies the reaction conditions in comparison with previous routes. A novel chemical redox route was developed for the preparation of water-miscible imidazolium ionic liquids (ILs). In this method, the reaction between 1-alkyl-3-methylimidazolium bromides or 3-butyl-1-phenylimidazolium bromide and the appropriate acid reactant was promoted by the redox reaction between the bromide ion and

  摘要 开发了一种新颖的化学氧化还原路线，用于制备与水混溶的咪唑鎓离子液体（ILs）。在该方法中，通过溴化物离子与过氧化氢水溶液之间的氧化还原反应，与己烯-1-烯之间的氧化还原反应，促进了1-烷基-3-甲基咪唑鎓溴化物或3-丁基-1-苯基咪唑鎓溴化物与适当的酸反应物之间的反应。作为溶剂和溴清除剂。制备的IL的残留溴离子和水含量分别通过离子色谱法和Karl-Fischer试验确定。该方法不仅以高纯度和高产率产生与水混溶的IL，而且与以前的路线相比简化了反应条件。 开发了一种新颖的化学氧化还原路线，用于制备与水混溶的咪唑鎓离子液体（ILs）。在该方法中，通过溴化物离子与过氧化氢水溶液之间的氧化还原反应，与己烯-1-烯之间的氧化还原反应，促进了1-烷基-3-甲基咪唑鎓溴化物或3-丁基-1-苯基咪唑鎓溴化物与适当的酸反应物之间的反应。作为溶剂和溴清除剂。制备的IL的残留溴离子和水含量分别通过离子色谱