1-butyl-3-methylimidazolium butyrate | 669772-78-5

• 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-butyl-3-methylimidazolium butyrate
• 英文别名: 1-Butyl-3-methylimidazolium butanoate；butanoate;1-butyl-3-methylimidazol-3-ium
• CAS: 669772-78-5
• 化学式: C₄H₇O₂*C₈H₁₅N₂
• 分子量: 226.319
• InChiKey: YYTMWCSQXPHEFG-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  0.65
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  48.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  sodium butyrate 、 氯化(1-丁基-3-甲基咪唑) 以 水 为溶剂， 以to give 6.15 g 1-butyl-3-methylimidazolium butanoate as a pale white solid (97%)的产率得到1-butyl-3-methylimidazolium butyrate
  参考文献：
  名称：

  METHOD FOR PREPARING IONIC LIQUID HAVING CARBOXYLIC ACID ANION USING MICROREACTOR

  摘要：

  本发明涉及一种使用微反应器制备具有羧酸阴离子的离子液体的方法。更具体地说，本发明涉及通过使丁酸钠、2-乙基己酸钠或辛酸钠与1-烷基-3-甲基咪唑、1,1-烷基甲基吡咯烷、1,2-二甲基-3-烷基咪唑、1-烷基-3-甲基吡啶或四甲基铵发生取代反应来高效制备具有羧酸阴离子的离子液体，如图1所示。根据本发明制备的离子液体具有高纯度，在10 ppm以下含有残留卤化物，并具有高电导率，因此可用作电解质或电容器。

  公开号：

  US20160254098A1

文献信息

• PRODUCTION OF IONIC LIQUIDS
  申请人：Buchanan Charles Michael

  公开号：US20080194834A1

  公开（公告）日：2008-08-14

  Ionic liquids and processes and apparatus for their production. The ionic liquids can be low sulfur and low halide carboxylated ionic liquids. The ionic liquids can be produced via formation of at least one intermediate carboxylated ionic liquid, and thereafter subjecting the intermediate carboxylated ionic liquid to at least one anion exchange process.

  离子液体及其生产的方法和装置。这些离子液体可以是低硫和低卤代羧酸盐离子液体。这些离子液体可以通过形成至少一种中间羧酸盐离子液体，然后将中间羧酸盐离子液体经过至少一次阴离子交换过程来生产。
• METHOD FOR PREPARING IONIC LIQUID HAVING CARBOXYLIC ACID ANION USING MICROREACTOR
  申请人：CHEMTECH RESEARCH INCORPORATION

  公开号：US20160254098A1

  公开（公告）日：2016-09-01

  The present invention relates to a method for preparing an ionic liquid having a carboxylic acid anion using a microreactor. More specifically, the present invention relates to a method for preparing, with high efficiency, an ionic liquid having a carboxylic acid anion as shown in FIG. 1, by having sodium butanoate, sodium 2-ethylhexanoate, or sodium octanoate undergo a substitution reaction with 1-alkyl-3-methylimidazolium, 1,1-alkylmethylpyrrolidinium, 1,2-dimethyl-3-alkylimidazolium, 1-alkyl-3-methylpyridinium, or tetramethylammonium, each of which being a cation. The ionic liquid prepared according to the present invention has high purity, containing residual halide at less than 10 ppm, and has high electrical conductivity, and therefore is capable of being used as an electrolyte or for a condenser.

  本发明涉及一种使用微反应器制备具有羧酸阴离子的离子液体的方法。更具体地说，本发明涉及通过使丁酸钠、2-乙基己酸钠或辛酸钠与1-烷基-3-甲基咪唑、1,1-烷基甲基吡咯烷、1,2-二甲基-3-烷基咪唑、1-烷基-3-甲基吡啶或四甲基铵发生取代反应来高效制备具有羧酸阴离子的离子液体，如图1所示。根据本发明制备的离子液体具有高纯度，在10 ppm以下含有残留卤化物，并具有高电导率，因此可用作电解质或电容器。
• HOMOGENEOUS CATALYST AND HETEROGENEOUS CATALYST BASED ON IONIC LIQUID, AND PREPARATION METHOD THEREFOR AND USE THEREOF
  申请人：Shenyang University of Chemical Technology

  公开号：EP3950123A1

  公开（公告）日：2022-02-09

  The present disclosure discloses a homogeneous catalyst comprising an ionic liquid with an anion and a cation, wherein the anion and the cation both comprises a nitrogen-containing heterocycle, wherein the cation has a structure represented by Formula I or Formula II, and the anion has a structure represented by Formula III, Formula IV or Formula V. The present disclosure further provides a heterogeneous catalyst comprising the homogeneous catalyst, a preparation method and use of the homogeneous catalyst and the heterogeneous catalyst. The homogeneous catalyst and heterogeneous catalyst are used to synthesize high-purity ethyl methyl carbonate product by the transesterification of dimethyl carbonate and ethanol, transesterification of dimethyl carbonate and diethyl carbonate, or transesterification of methanol and diethyl carbonate, and exhibit high reaction activity wherein a reaction equilibrium can be reached when the reaction time is 5 min and the reaction temperature is in a range from 76°C to 78°C, and the both catalysts show high catalytic activity even at near room temperature 30°C. The synthesized ionic liquids exhibit substantially unchanged catalytic activity and show higher stability, even after reused 20 times.

  本发明公开了一种均相催化剂，该催化剂由带有阴离子和阳离子的离子液体组成，其中阴离子和阳离子均由含氮杂环组成，阳离子具有式I或式II表示的结构，阴离子具有式III、式IV或式V表示的结构。本发明进一步提供了一种包含该均相催化剂的异相催化剂、该均相催化剂和该异相催化剂的制备方法和用途。均相催化剂和异相催化剂用于通过碳酸二甲酯和乙醇的酯交换反应、碳酸二甲酯和碳酸二乙酯的酯交换反应或甲醇和碳酸二乙酯的酯交换反应合成高纯度的碳酸甲乙酯产品，并表现出较高的反应活性，其中当反应时间为 5 分钟，反应温度在 76°C 至 78°C 范围内时，可达到反应平衡，即使在接近室温 30°C 时，两种催化剂也表现出较高的催化活性。合成的离子液体的催化活性基本不变，即使重复使用 20 次，也能表现出较高的稳定性。
• Regioselectively substituted cellulose esters produced in a carboxylated ionic liquid process and products produced therefrom
  申请人：EASTMAN CHEMICAL COMPANY

  公开号：US10174129B2

  公开（公告）日：2019-01-08

  This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.

  本发明涉及由区域选择性取代的纤维素酯组成的新型组合物。本发明的一个方面涉及从溶解在离子液体中的纤维素制备区域选择性取代的纤维素酯的工艺。本发明的另一方面涉及区域选择性取代的纤维素酯在液晶显示器保护膜和补偿膜等应用中的实用性。
• Effect of alkyl chain length in anion on dissolution of cellulose in 1-butyl-3-methylimidazolium carboxylate ionic liquids
  作者：Airong Xu、Yibo Zhang、Weiwei Lu、Kaisheng Yao、Hang Xu

  DOI：10.1016/j.molliq.2014.05.018

  日期：2014.9

  In recent years, 1-butyl-3-methylimidazolium carboxylate ionic liquids (Is) have been reported to be powerful solvents for cellulose. However, little is known for the influence of the chain length in carboxylate anion on the solubility of cellulose. Therefore, in this work, we have synthesized 1-butyl-3-methylimidazolium carboxylate ILs including 1-butyl-3-methylimidazolium formate ([C(4)mim][HCOO]), acetate ([C(4)min][CH3COO]), propionate ([C(4)mim][CH3CH2COO]) and butyrate ([C(4)mim][CH3(CH2)(2)COO]), in which the alkyl chain length in the carboxylate anion is being varied. Solubilities of cellulose in the ILs have been determined experimentally at 70 degrees C. The effect of the chain length in carboxylate anion on the solubility of cellulose has been estimated and investigated by H-1 NMR Meanwhile, the regenerated cellulose from the ILs were investigated by scanning electron micrograph (SEM), thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR) spectroscopy. Such knowledge would enhance our understanding of the design of novel ILs for cellulose. (C) 2014 Elsevier B.V. All rights reserved.