Pe roxytetra hydro furan | 56533-59-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• 英文名称: Pe roxytetra hydro furan
• 英文别名: 2-(oxolan-2-ylperoxy)oxolane
• CAS: 56533-59-6
• 化学式: C₈H₁₄O₄
• 分子量: 174.197
• InChiKey: MSGKMHDBZGTFKY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  12
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  四氢呋喃 在 2,6-bis-(1-[toluene-4-sulfonyl]-[4R,5R]-4,5-diphenyl-4,5-dihydro-1H-imidazol-2-yl)-pyridine 、 iron(II) triflate 、 氧气 作用下， 60.0 ℃ 、101.33 kPa 条件下， 反应 24.0h， 生成 γ-丁内酯 、 Pe roxytetra hydro furan
  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

文献信息

• Dehydrogenative α-Oxygenation of Ethers with an Iron Catalyst
  作者：Angela Gonzalez-de-Castro、Craig M. Robertson、Jianliang Xiao

  DOI：10.1021/ja502167h

  日期：2014.6.11

  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.