1,3-dimethylimidazolium hydrogen sulfate

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1,3-dimethylimidazolium hydrogen sulfate
• 英文别名: 1-methyl-3-methylimidazolium hydrogen sulfate；[mmim]HSO4；1,3-Dimethylimidazol-1-ium;hydron;sulfate；1,3-dimethylimidazol-1-ium;hydron;sulfate
• 化学式: C₅H₉N₂*HO₄S
• 分子量: 194.211
• InChiKey: DRFXTAHYPQLMHZ-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -1.15
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 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：

  苦味酸 、 1,3-dimethylimidazolium hydrogen sulfate 以 乙醇 为溶剂， 以61%的产率得到1,3-dimethylimidazolium picrate
  参考文献：
  名称：

  Karkhanis, Dattatraya W.; Field, Lamar, Phosphorus and Sulfur and the Related Elements, 1985, vol. 22, p. 49 - 58

  摘要：

  DOI：
• 作为产物：
  描述：

  1,3-二甲基咪唑 碘 在 Amberlist A-26 HSO₄(-) form 作用下， 以 甲醇 为溶剂， 以100%的产率得到1,3-dimethylimidazolium hydrogen sulfate
  参考文献：
  名称：

  Imidazolium ionic liquids: A simple anion exchange protocol

  摘要：

  开发了一种高效且简单的协议，用于在咪唑盐离子液体中广泛阴离子范围的碘化物或溴化物定量交换。通过两种不同的程序将选定的阴离子加载到阴离子交换树脂中，随后用于提供纯化便利的离子对。

  DOI：

  10.1039/b915743n

文献信息

• A Simple Halide-to-Anion Exchange Method for Heteroaromatic Salts and Ionic Liquids
  作者：Ermitas Alcalde、Immaculada Dinarès、Anna Ibáñez、Neus Mesquida

  DOI：10.3390/molecules17044007

  日期：——

  A broad and simple method permitted halide ions in quaternary heteroaromatic and ammonium salts to be exchanged for a variety of anions using an anion exchange resin (A− form) in non-aqueous media. The anion loading of the AER (OH− form) was examined using two different anion sources, acids or ammonium salts, and changing the polarity of the solvents. The AER (A− form) method in organic solvents was

  一种广泛而简单的方法允许在非水介质中使用阴离子交换树脂（A-型）将季杂芳烃和铵盐中的卤离子交换为各种阴离子。使用两种不同的阴离子源（酸或铵盐）并改变溶剂的极性来检查 AER（OH- 形式）的阴离子负载。然后将有机溶剂中的 AER（A-形式）方法应用于几种季杂芳族盐和离子液体，阴离子交换以优异的定量收率进行，同时去除卤化物杂质。依靠目标离子对的疏水性进行反阴离子交换，使用具有可变极性的有机溶剂，如 CH3OH、CH3CN 和偶极非羟基溶剂混合物 CH3CN:CH2Cl2 (3:
• Process for the Preparation of Onium Alkylsulfites
  申请人：Ignatyev Nikolai (Mykola)

  公开号：US20080227987A1

  公开（公告）日：2008-09-18

  The invention relates to a process for the preparation of onium alkylsulfites by reaction of an onium halide or carboxylate with a symmetrically substituted dialkyl sulfite or with an asymmetrically substituted dialkyl sulfite at temperatures of 0 to 70° C.

  该发明涉及一种通过在0至70°C温度下，将一个铵盐卤化物或羧酸盐与对称取代的二烷基亚磺酸酯或非对称取代的二烷基亚磺酸酯反应制备亚磺酸铵化合物的方法。
• Symmetrical and unsymmetrical Brønsted acidic ionic liquids for the effective conversion of fructose to 5-hydroxymethyl furfural
  作者：Deepali A. Kotadia、Saurabh S. Soni

  DOI：10.1039/c2cy20493b

  日期：——

  Symmetrical and unsymmetrical Brønsted acidic Ionic Liquids (ILs) have been synthesized via a one-pot halogen-free route and characterized by TGA-DTA and DSC to compare their stability and activity. The acidities of the four ILs have also been tested by the Hammett method. These ILs were utilised as catalysts for the dehydration of fructose to 5-hydroxymethylfurfural (HMF) in the presence of dimethylsulphoxide

  对称和不对称的布朗斯台德酸性离子液体（ILs）通过一锅法无卤素合成，并通过TGA-DTA和DSC进行了表征，以比较它们的稳定性和活性。四种IL的酸度也已通过Hammett方法进行了测试。这些IL被用作催化剂的脱水果糖 到 5-羟甲基糠醛 （HMF）在 二甲基亚砜 （二甲基亚砜）作为溶剂。研究了反应时间，温度和催化剂浓度的影响。IL对于在相对较低的温度下具有非常好的HMF收率和选择性的反应非常有效。所用的IL可以轻松回收利用，而果糖转化率和HMF收率没有任何重大损失。
• Efficient Synthesis of 1,3-Dialkylimidazolium-Based Ionic Liquids: The Modified Continuous Radziszewski Reaction in a Microreactor Setup
  作者：Johannes Zimmermann、Bernd Ondruschka、Annegret Stark

  DOI：10.1021/op100055f

  日期：2010.9.17

  By making use of a modified Radziszewski reaction, it is demonstrated that water-soluble 1,3-dialkylimidazolium-based ionic liquids can be produced in good yields (70-90%) and purities (>95%) starting from readily available, cost-effective monoalkyl-amines, glyoxal, formaldehyde, and mineral or organic acids. The homosubstituted 1,3-dialkylimidazolium salts feature high thermal stabilities similar to those of their heterosubstituted counterparts, and relatively low viscosities, thus fulfilling the requirements for solvent application. The effect of various parameters has been studied with the goal of improving yields for both the batchwise and continuous synthesis (making use of a microreactor setup), allowing for the production of a wide variety of ionic liquids and the introduction of functionalities. The applicability of these ionic liquids is demonstrated on the example of cellulose dissolution and the dehydration of fructose to 5-hydroxymethylfurfural.