methyl 2-(2-{2-[(methylsulfonyloxy)oxy]acetyl}phenyl)acetate | 799804-36-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 2-(2-{2-[(methylsulfonyloxy)oxy]acetyl}phenyl)acetate
• 英文别名: Methyl 2-[2-(2-methylsulfonyloxyacetyl)phenyl]acetate
• CAS: 799804-36-7
• 化学式: C₁₂H₁₄O₆S
• 分子量: 286.306
• InChiKey: UCZOHYUESIGAIA-UHFFFAOYSA-N

物化性质

• 熔点：
  97-100 °C
• 沸点：
  475.4±35.0 °C(Predicted)
• 密度：
  1.315±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  19
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  95.1
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl 2-(2-{2-[(methylsulfonyloxy)oxy]acetyl}phenyl)acetate 在 N-甲基咪唑 作用下， 以 甲醇 为溶剂， 以77%的产率得到甲基 3-氧代-2,3-二氢-1H-茚-1-羧酸
  参考文献：
  名称：

  Photochemical Preparation of Highly Functionalized 1-Indanones

  摘要：

  A series of o-alkylphenyl alkyl ketones I were synthesized by different methods. The presence of a leaving group X adjacent to the carbonyl group is the special peculiarity of these ketones. Upon irradiation the keto carbonyl group of these compounds undergoes an n-pi* excitation followed by a 1,5-hydrogen migration from the o-alkyl substituent to the carbonyl oxygen atom. The thus formed 1,4-diradicals are subject to a very rapid elimination of acid HX, giving 1,5-diradicals. We called this process spin center shift. After intersystem crossing these diradicals cyclize to 1-indanones 20 in good yields. Depending on the solvent and on substituents, o-alkoxyalkyl ketones 22 or benzo[c]furanes 21 are obtained as byproducts. The mechanism of the cyclization was elucidated by quantum chemical calculations and kinetic measurements.

  DOI：

  10.1021/jo040173x
• 作为产物：
  描述：

  2-(2-碘苯基)乙酸甲酯 在 bis-triphenylphosphine-palladium(II) chloride 、 potassium fluoride 、 copper(l) iodide 、 methyl(triphenylphosphine)gold(I) 、 18-冠醚-6 、 三氟甲磺酸 、 水 、 二异丙胺 作用下， 以 1,4-二氧六环 、 甲醇 为溶剂， 反应 27.0h， 生成 methyl 2-(2-{2-[(methylsulfonyloxy)oxy]acetyl}phenyl)acetate
  参考文献：
  名称：

  Photochemical Preparation of Highly Functionalized 1-Indanones

  摘要：

  A series of o-alkylphenyl alkyl ketones I were synthesized by different methods. The presence of a leaving group X adjacent to the carbonyl group is the special peculiarity of these ketones. Upon irradiation the keto carbonyl group of these compounds undergoes an n-pi* excitation followed by a 1,5-hydrogen migration from the o-alkyl substituent to the carbonyl oxygen atom. The thus formed 1,4-diradicals are subject to a very rapid elimination of acid HX, giving 1,5-diradicals. We called this process spin center shift. After intersystem crossing these diradicals cyclize to 1-indanones 20 in good yields. Depending on the solvent and on substituents, o-alkoxyalkyl ketones 22 or benzo[c]furanes 21 are obtained as byproducts. The mechanism of the cyclization was elucidated by quantum chemical calculations and kinetic measurements.

  DOI：

  10.1021/jo040173x

文献信息

• Photochemical Preparation of Highly Functionalized 1-Indanones
  作者：Pablo Wessig、Clemens Glombitza、Gunnar Müller、Janek Teubner

  DOI：10.1021/jo040173x

  日期：2004.10.1

  A series of o-alkylphenyl alkyl ketones I were synthesized by different methods. The presence of a leaving group X adjacent to the carbonyl group is the special peculiarity of these ketones. Upon irradiation the keto carbonyl group of these compounds undergoes an n-pi* excitation followed by a 1,5-hydrogen migration from the o-alkyl substituent to the carbonyl oxygen atom. The thus formed 1,4-diradicals are subject to a very rapid elimination of acid HX, giving 1,5-diradicals. We called this process spin center shift. After intersystem crossing these diradicals cyclize to 1-indanones 20 in good yields. Depending on the solvent and on substituents, o-alkoxyalkyl ketones 22 or benzo[c]furanes 21 are obtained as byproducts. The mechanism of the cyclization was elucidated by quantum chemical calculations and kinetic measurements.