1-ethyl-3-methylimidazolium α,ε-diaminocaproic acid salt

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1-ethyl-3-methylimidazolium α,ε-diaminocaproic acid salt
• 英文别名: 3-Ethyl-1-methyl-1H-imidazol-3-ium L-lysinate；(2S)-2,6-diaminohexanoate;1-ethyl-3-methylimidazol-3-ium
• 化学式: C₆H₁₁N₂*C₆H₁₃N₂O₂
• 分子量: 256.348
• InChiKey: QVEOTTBAVCSDIF-JEDNCBNOSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -1.47
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  101
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  1-乙基-3-甲基溴化咪唑 在 anion-exchange resin 作用下， 以 乙醇 为溶剂， 反应 24.0h， 生成 1-ethyl-3-methylimidazolium α,ε-diaminocaproic acid salt
  参考文献：
  名称：

  以氨基酸离子液体为催化剂合成高分子量和先进性能的生物衍生聚碳酸酯的非光气工艺

  摘要：

  生物质和二氧化碳向塑料的转化是减少温室效应并减轻石油资源消耗的关键解决方案之一。但是，仍然缺乏具有高分子量和优异性能的生物衍生聚合物及其相应的绿色合成方法，这限制了生物衍生聚合物替代石油基聚合物的潜力。在这项研究中，通过利用异山梨醇（ISO）和碳酸二苯酯（DPC）作为反应物（分别来自可再生资源和二氧化碳），开发了一种由氨基酸离子液体催化的生物衍生聚碳酸酯的环保合成方法。通过使用1-乙基-3-甲基咪唑赖氨酸（[Emim] [Lys]）作为催化剂，重均分子量为150000的聚碳酸异山梨酯（PIC），Ť g ^PIC的最高温度为174°C。使用核磁共振（NMR）光谱，基质辅助激光解吸/电离飞行时间质谱（MALDI-ToF MS）和密度泛函理论（DFT）计算研究了反应机理。优异的催化性能归因于[Emim] [Lys]可以有效活化ISO的羟基和DPC的羰基，并抑制环状中间体的形成。此外，为了克服PIC的脆性，将1

  DOI：

  10.1039/d0gc00265h

文献信息

• Compositions and methods for the dissolution and depolymerization of lignin
  申请人：National Technology & Engineering Solutions of Sandia, LLC

  公开号：US10703770B2

  公开（公告）日：2020-07-07

  The present invention provides for a method for dissolving and/or depolymerizing lignin comprising: (a) providing a composition comprising lignin, (b) contacting the composition with a strong hydrogen donor, such as a polyol, to form a first solution, (c) incubating the first solution at a temperature equal to or less than 100° C., whereby at least 20% by weight of the lignin is dissolved, (d) optionally introducing an oxidation agent to the first solution to form a second solution, wherein the temperature of the second solution is equal to or less than 100° C., whereby lignin is depolymerized, and (e) optionally introducing an anti-solvent to the second solution to precipitate the depolymerized lignin.

  本发明提供了一种溶解和/或解聚木质素的方法，该方法包括：(a) 提供包含木质素的组合物，(b) 将该组合物与强氢供体（如多元醇）接触以形成第一溶液，(c) 在等于或低于 100°C 的温度下培养第一溶液，其中至少 20% （重量）的木质素被溶解，(d) 可选地将氧化剂引入第一溶液以形成第二溶液，其中第二溶液的温度等于或低于 100°C 、(d) 可选地将氧化剂引入第一溶液以形成第二溶液，其中第二溶液的温度等于或低于 100°C，从而使木质素解聚，以及 (e) 可选地将抗溶剂引入第二溶液以沉淀解聚的木质素。
• Ionic amino acids: Application as organocatalysts in the aza-Michael reaction
  作者：Naoki Morimoto、Yasuo Takeuchi、Yuta Nishina

  DOI：10.1016/j.molcata.2012.11.012

  日期：2013.3

  The ethyl methyl imidazolium salts of amino acids, [emiml[AA], have been used as catalysts in the aza-Michael reaction. Furthermore, when chiral amino acids were used, a stereoselective reaction was achieved. The mechanism of the transformation was verified by the detection of a key intermediate by electrospray ionization mass spectroscopy (ESI-MS). (C) 2012 Elsevier B.V. All rights reserved.
• Novel compositions and methods for the dissolution and depolymerization of lignin
  申请人：National Technology & Engineering Solutions of Sandia, LLC

  公开号：US20170349617A1

  公开（公告）日：2017-12-07

  The present invention provides for a method for dissolving and/or depolymerizing lignin comprising: (a) providing a composition comprising lignin, (b) contacting the composition with a strong hydrogen donor, such as a polyol, to form a first solution, (c) incubating the first solution at a temperature equal to or less than 100° C., whereby at least 20% by weight of the lignin is dissolved, (d) optionally introducing an oxidation agent to the first solution to form a second solution, wherein the temperature of the second solution is equal to or less than 100° C., whereby lignin is depolymerized, and (e) optionally introducing an anti-solvent to the second solution to precipitate the depolymerized lignin.
• Novel protic or phosphate-based ionic liquids useful for lignocellulosic processing
  申请人：National Technology & Engineering Solutions of Sandia, LLC

  公开号：US20190292572A1

  公开（公告）日：2019-09-26

  The present invention provides for novel protic ionic liquids (PIL) or phosphate-based ionic liquid (PBIL) useful for lignocellulosic processing described herein. The novel protic ionic liquids are capable of pretreatment of lignocellulosic biomass over a wide range of pH.
• A non-phosgene process for bioderived polycarbonate with high molecular weight and advanced property profile synthesized using amino acid ionic liquids as catalysts
  作者：Zhencai Zhang、Fei Xu、Yaqin Zhang、Chenhao Li、Hongyan He、Zifeng Yang、Zengxi Li

  DOI：10.1039/d0gc00265h

  日期：——

  bioderived polymers with high molecular weights and excellent performance and their corresponding green synthesis processes, which limits the potential of bioderived polymers to replace petroleum-based polymers. In this study, an eco-friendly synthetic process for bioderived polycarbonate, catalyzed by amino acid ionic liquids, was developed by utilizing isosorbide (ISO) and diphenyl carbonate (DPC) as

  生物质和二氧化碳向塑料的转化是减少温室效应并减轻石油资源消耗的关键解决方案之一。但是，仍然缺乏具有高分子量和优异性能的生物衍生聚合物及其相应的绿色合成方法，这限制了生物衍生聚合物替代石油基聚合物的潜力。在这项研究中，通过利用异山梨醇（ISO）和碳酸二苯酯（DPC）作为反应物（分别来自可再生资源和二氧化碳），开发了一种由氨基酸离子液体催化的生物衍生聚碳酸酯的环保合成方法。通过使用1-乙基-3-甲基咪唑赖氨酸（[Emim] [Lys]）作为催化剂，重均分子量为150000的聚碳酸异山梨酯（PIC），Ť g ^PIC的最高温度为174°C。使用核磁共振（NMR）光谱，基质辅助激光解吸/电离飞行时间质谱（MALDI-ToF MS）和密度泛函理论（DFT）计算研究了反应机理。优异的催化性能归因于[Emim] [Lys]可以有效活化ISO的羟基和DPC的羰基，并抑制环状中间体的形成。此外，为了克服PIC的脆性，将1