1,1'-peroxyisochroman | 109818-99-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 1,1'-peroxyisochroman
• 英文别名: bis(isochroman-1-yl)peroxide；bis(1-isochromanyl)peroxide；di-isochroman-1-yl peroxide；Di-isochroman-1-yl-peroxid；Isochromanyl peroxide；1-(3,4-dihydro-1H-isochromen-1-ylperoxy)-3,4-dihydro-1H-isochromene
• CAS: 109818-99-7
• 化学式: C₁₈H₁₈O₄
• 分子量: 298.339
• InChiKey: DCJWGQCCBDWMIY-UHFFFAOYSA-N

物化性质

• 沸点：
  452.5±45.0 °C(Predicted)
• 密度：
  1.26±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1,1'-peroxyisochroman 在 iron(II) triflate 、 2-((4R,5R)-1-((4-(tert-butyl)phenyl)sulfonyl)-4,5-diphenylimidazolidin-2-yl)-6-((4R,5R)-1-((4-(tert-butyl)phenyl)sulfonyl)-4,5-diphenylimidazolidin-2-yl)pyridine 、 氧气 作用下， 以 苯 为溶剂， 45.0 ℃ 、101.33 kPa 条件下， 反应 16.0h， 生成 异色瞒
  参考文献：
  名称：

  Dehydrogenative α-Oxygenation of Ethers with an Iron Catalyst

  摘要：

  Selective alpha-oxidation of ethers under aerobic conditions is a long-pursued transformation; however, a green and efficient catalytic version of this reaction remains challenging. Herein, we report a new family of iron catalysts capable of promoting chemoselective alpha-oxidation of a range of ethers with excellent mass balance and high turnover numbers under 1 atm of O-2 with no need for any additives. Unlike metalloenzymes and related biomimetics, the catalyst produces H-2 as the only byproduct. Mechanistic investigations provide evidence for an unexpected two-step reaction pathway, which involves dehydrogenative incorporation of O-2 into the ether to give a peroxobisether intermediate followed by cleavage of the peroxy bond to form two ester molecules, releasing stoichiometric H-2 gas in each step. The operational simplicity and environmental friendliness of this methodology affords a useful alternative for performing oxidation, while the unique ability of the catalyst in oxygenating a substrate via dehydrogenation points to a new direction for understanding metalloenzymes and designing new biomimetic catalysts.

  DOI：

  10.1021/ja502167h
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 1,4-二氧六环 、 硫酸 、 双氧水 作用下， 生成 1,1'-peroxyisochroman
  参考文献：
  名称：

  Rieche; Schmitz, Chemische Berichte, 1957, vol. 90, p. 1094,1098

  摘要：

  DOI：

文献信息

• Sulfonic Acid-Catalyzed Autoxidative Carbon-Carbon Coupling Reaction under Elevated Partial Pressure of Oxygen
  作者：Áron Pintér、Martin Klussmann

  DOI：10.1002/adsc.201100563

  日期：2012.3

  reactivity at ambient pressure. The benzylic CH bonds of xanthene, acridanes, isochromane and related heterocycles could be functionalized with nucleophiles including ketones, 1,3‐dicarbonyl compounds and aldehydes. Electron‐rich arenes could be utilized as nucleophiles at elevated temperatures. The reactions are believed to proceed via autoxidation of the benzylic CH bonds to the hydroperoxides and subsequent

  描述了苄基CH键与各种C-亲核试剂的好氧有机催化氧化CC键形成反应。通过在室温下在磺酸催化剂的存在下在升高的氧分压下简单地搅拌底物来进行偶联反应。压力的升高使得广泛范围的亲核底物能够反应，否则在环境压力下显示出较差的反应性。苄Ç 呫吨，acridanes，isochromane及相关杂环的H键可以与亲核试剂包括酮，1,3-二羰基化合物和醛官能化。富电子芳烃可在高温下用作亲核试剂。该反应被认为是通过以下方式进行的苄基CH键的自氧化与氢过氧化物和随后被磺酸催化的亲核取代。
• The Preparation of Isochromans
  作者：Samuel Siegel、Seymour Coburn

  DOI：10.1021/ja01155a561

  日期：1951.11