1,1,1-Trifluoro-2,2-dimethoxypropane | 157055-34-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,1,1-Trifluoro-2,2-dimethoxypropane
• CAS: 157055-34-0
• 化学式: C₅H₉F₃O₂
• 分子量: 158.12
• InChiKey: QVUMNDQLRQNLAW-UHFFFAOYSA-N

物化性质

• 沸点：
  89.2±35.0 °C(Predicted)
• 密度：
  1.127±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  1,1,1-三氟丙酮 、 原甲酸三甲酯 在 对甲苯磺酸 作用下， 生成 1,1,1-Trifluoro-2,2-dimethoxypropane
  参考文献：
  名称：

  An Acetal Acylation Methodology for Producing Diversity of Trihalomethyl- 1,3‑dielectrophiles and 1,2-Azole Derivatives

  摘要：

  A series of functionalized 1,1,1-trihalo-4-methoxy-3-alken-2-ones [CX3C(O)CR1=CROMe, where X = F or Cl; R = n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-tridecyl, (CH2)(2)CH=C(Me)(2), (CH2)(2)Ph, (CH2)(2)-(4-HOC6H4), (CH2)(2)-(4-MeOC6H4), (CH2)(2)CO2Me, (CH2)(3)CO2Me, CH(SMe)CH3, CH2(2-MeOC6H4), and R-1 = H, and R = H and R-1 = n-decyl] were synthesized from respective alkyl methyl ketones or aldehyde via acetal acylation using trifluoroacetic anhydride and trichloroacetyl chloride. 1,1,1-Trihalo-4-methoxy-3-alken-2-ones with acid-compatible substituents were easily hydrolyzed to respective trihalomethyl-1,3-diketones. The 1,1,1-trihalo-4-methoxy-3-alken-2-ones and/or respective trihalomethyl-1,3-diketones were reacted regiospecifically with hydroxylamine hydrochloride, leading to isoxazole derivatives, and with hydrazines, leading to respective 1H-pyrazole derivatives. The structures of all compounds were assigned based on nuclear magnetic resonance (NMR) and mass spectrometric data. This method represents an efficient pathway for the regioselective trihaloacetylation of asymmetrically substituted alkyl methyl ketones and highly self-condensing aldehydes. Moreover, this approach allows the introduction of biologically recognizable moieties, such as those from levulinic acid, sulcatone (prenyl), benzylacetone, anisylacetone, and raspberry ketone, as synthetic molecular targets.

  DOI：

  10.21577/0103-5053.20190160

文献信息

• Application of Tethered Ruthenium Catalysts to Asymmetric Hydrogenation of Ketones, and the Selective Hydrogenation of Aldehydes
  作者：Katherine E. Jolley、Antonio Zanotti‐Gerosa、Fred Hancock、Alan Dyke、Damian M. Grainger、Jonathan A. Medlock、Hans G. Nedden、Jacques J. M. Le Paih、Stephen J. Roseblade、Andreas Seger、Vilvanathan Sivakumar、Ivan Prokes、David J. Morris、Martin Wills

  DOI：10.1002/adsc.201200362

  日期：2012.9.17

  An improved method for the synthesis of tethered ruthenium(II) complexes of monosulfonylated diamines is described, together with their application to the hydrogenation of ketones and aldehydes. The complexes were applied directly, in their chloride form, to asymmetric ketone hydrogenation, to give products in excess of 99% ee in the best cases, using 30 bar of hydrogen at 60 °C, and to the selective

  描述了一种改进的合成方法，用于合成单磺酰化二胺的束缚钌（II）配合物，以及它们在酮和醛加氢中的应用。将络合物以氯化物形式直接用于不对称酮的氢化反应，在最佳情况下，在60°C的条件下使用30 bar氢气，可提供超过99％ee的产物，并选择性还原醛，而不是其他官能团。组。