2,2,3,4,5,5-hexamethylimidazolidine-1-yloxy | 70387-98-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑烷类
• 英文名称: 2,2,3,4,5,5-hexamethylimidazolidine-1-yloxy
• 英文别名: 2,2,3,4,5,5-Hexamethylimidazolidine 1-oxyl
• CAS: 70387-98-3
• 化学式: C₉H₁₉N₂O
• 分子量: 171.263
• InChiKey: RXNHDACUAMQTRM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  7.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,2,3,4,5,5-hexamethylimidazolidine-1-yloxy 在 C₆H₃(C(OH)(CF₃)2)CMeCHCMe₂NOH 作用下， 以 正己烷 为溶剂， 生成 2,2,3,4,5,5-Hexamethyl-imidazolidin-1-ol
  参考文献：
  名称：

  位阻羟胺-硝酰基体系中氢原子的交换反应

  摘要：

  测定了喹啉、咪唑啉、吡咯烷和哌啶系列的空间位阻硝酰基自由基-羟胺以及二芳基羟胺体系中氢原子的直接和反向交换反应的速率常数。建立了水胺还原能力的量表。低同位素效应值是羟胺-硝酰基自由基体系中氢交换反应的典型特征。

  DOI：

  10.1007/bf02495549
• 作为产物：
  描述：

  2,2,3,4,5,5-Hexamethyl-imidazolidin-1-ol 在 C₆H₃(C(OH)(CF₃)2)CCH₃CHC(CH₃)2NO* 作用下， 以 正己烷 为溶剂， 生成 2,2,3,4,5,5-hexamethylimidazolidine-1-yloxy
  参考文献：
  名称：

  位阻羟胺-硝酰基体系中氢原子的交换反应

  摘要：

  测定了喹啉、咪唑啉、吡咯烷和哌啶系列的空间位阻硝酰基自由基-羟胺以及二芳基羟胺体系中氢原子的直接和反向交换反应的速率常数。建立了水胺还原能力的量表。低同位素效应值是羟胺-硝酰基自由基体系中氢交换反应的典型特征。

  DOI：

  10.1007/bf02495549

文献信息

• Dikanov, S. A.; Grigor'ev, I. A.; Volodarskii, L. B., Russian Journal of Physical Chemistry, 1982, vol. 56, # 11, p. 1696 - 1699
  作者：Dikanov, S. A.、Grigor'ev, I. A.、Volodarskii, L. B.、Tsvetkov, Yu. D.

  DOI：——

  日期：——
• Effect of the chemical structure of nitroxyl radicals on their reactivity in the reaction with hydrazobenzene and tetranitromethane
  作者：A. D. Malievskii、S. V. Koroteev、L. B. Volodarskii、A. B. Shapiro

  DOI：10.1007/bf00958847

  日期：1990.11

  The reaction rate constants of reduction of stable radicals of different classes by hydrazobenzene in hexane at approximately 20-degrees-C, in the range of 0.4-5.10(3) M-1.sec-1, were determined; a single scale of the oxidative properties of stable nitroxyl radicals was constructed. The rate constants of oxidation of a series of nitroxyl radicals by tetranitromethane in aqueous medium at approximately 20-degrees-C, in the range of 0.06-10 M-1.sec-1, were determined. It was shown that the oxidative properties of the nitroxyl group decrease slightly with an increase in its reducing properties for nitroxyl radicals of the piperidine and imidazoline series in reactions with ascorbic acid and tetranitromethane in aqueous medium, respectively.
• Sterically shielded spin labels for in-cell EPR spectroscopy: Analysis of stability in reducing environment
  作者：A. P. Jagtap、I. Krstic、N. C. Kunjir、R. Hänsel、T. F. Prisner、S. Th. Sigurdsson

  DOI：10.3109/10715762.2014.979409

  日期：2015.1.2

  Electron paramagnetic resonance (EPR) spectroscopy is a powerful and widely used technique for studying structure and dynamics of biomolecules under bio-orthogonal conditions. In-cell EPR is an emerging area in this field; however, it is hampered by the reducing environment present in cells, which reduces most nitroxide spin labels to their corresponding diamagnetic N-hydroxyl derivatives. To determine which radicals are best suited for in-cell EPR studies, we systematically studied the effects of substitution on radical stability using five different classes of radicals, specifically piperidine-, imidazolidine-, pyrrolidine-, and isoindoline-based nitroxides as well as the Finland trityl radical. Thermodynamic parameters of nitroxide reduction were determined by cyclic voltammetry; the rate of reduction in the presence of ascorbate, cellular extracts, and after injection into oocytes was measured by continuous-wave EPR spectroscopy. Our study revealed that tetraethyl-substituted nitroxides are good candidates for in-cell EPR studies, in particular pyrrolidine derivatives, which are slightly more stable than the trityl radical.
• The exchange reaction of hydrogen atoms in the system sterically hindered hydroxylamine-nitroxyl radical
  作者：A. D. Malievskii、S. V. Koroteev

  DOI：10.1007/bf02495549

  日期：1998.7

  direct and reverse exchange reactions of the hydrogen atom in the system sterically-hindered nitroxyl radical-hydroxylamine of the quinoline, imidazoline, pyrrolidine, and piperidine series as well as diarylhydroxylamine were determined. A scale of the reductive abilities of the hydrolamines was established. A low value of the isotope effect is typical of the reactions of hydrogen exchange in the systems

  测定了喹啉、咪唑啉、吡咯烷和哌啶系列的空间位阻硝酰基自由基-羟胺以及二芳基羟胺体系中氢原子的直接和反向交换反应的速率常数。建立了水胺还原能力的量表。低同位素效应值是羟胺-硝酰基自由基体系中氢交换反应的典型特征。