1-allyl-3-methylimidazolium dimethyl phosphonate | 1236554-04-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机磷酸及其衍生物
• 英文名称: 1-allyl-3-methylimidazolium dimethyl phosphonate
• 英文别名: 3-methyl-1-allylimidazol-3-ium dimethyl phosphate；Dimethyl phosphate;1-methyl-3-prop-2-enylimidazol-1-ium
• CAS: 1236554-04-3
• 化学式: C₂H₆O₄P*C₇H₁₁N₂
• 分子量: 248.219
• InChiKey: CXKYQKHYIRCPJK-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  0.25
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  67.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  磷酸三甲酯 、 N-烯丙基咪唑 反应 24.0h， 生成 1-allyl-3-methylimidazolium dimethyl phosphonate
  参考文献：
  名称：

  氢键受体对纤维素/ 1-烯丙基-3-甲基咪唑鎓氯化物溶液的影响的真知灼见

  摘要：

  尽管已经很好地建立了离子液体作为溶解和加工天然纤维素纤维的有效溶剂，但是在分子水平上详细的溶解机理仍然不清楚。在此，比浊法测量表明，纤维素在1-烯丙基-3-甲基咪唑鎓氯化物（AmimCl）中的溶解度随温度升高而降低。通过红外光谱研究了AmimCl中纤维素的OH拉伸振动带的温度依赖性。通过比浊法和NMR光谱研究了AmimCl与不同氢键受体之间的相互作用，这表明氢键受体与AmimCl的优异相容性为纤维素的羟基提供了更多的相互作用位点。此外，已经合成了具有类似氢键受体阴离子结构的离子液体。这项研究为制备具有优异纤维素溶解性的离子液体提供了绿色安全指南。

  DOI：

  10.1016/j.carbpol.2017.08.006

文献信息

• Enhancement of enzymatic in situ saccharification of cellulose in aqueous-ionic liquid media by ultrasonic intensification
  作者：Fang Yang、Liangzhi Li、Qiang Li、Weiqiang Tan、Wei Liu、Mo Xian

  DOI：10.1016/j.carbpol.2010.02.031

  日期：2010.6

  A new approach for in situ enzymatic saccharification of cellulose in ionic liquids (ILs)-aqueous media is presented in which ultrasonic pretreatment was used to enhance the conversion of cellulose. For this purpose, the solubility of cellulose and the activity of cellulase were investigated in six alkylphosphate ILs. 1-Methyl-3-methylimidazolium dimethylphosphate ([Mmim][DMP]) giving favorable solubility and biocompatibility was selected to establish aqueous-ILs system for enzymatic in situ saccharification of cellulose. After further optimization of reaction parameters concerning cellulase concentration, temperature and IL concentration, higher conversion (95.48%) of cellulose was obtained in the media of aqueous-[Mmim][DMP] by conducting the pretreatment of cellulose with ultrasonic heating, whereas the conversion of cellulose untreated was 42.77%. Scanning electronic microscopy (SEM) and viscosity analysis indicated that IL-treated cellulose under ultrasonic condition was subjected to depolymerizadon, which led to more efficient saccharification. The findings of this study would have great implications for developing a continuous process for transformation of biomass such as straw cellulose to ethanol or other hydrocarbons. (C) 2010 Elsevier Ltd. All rights reserved.