3-[4-(carboxymethyl)-4-diazo-3-oxobutyl]-3-methyl-1,5-dihydro-3H-2,4-benzodioxepin | 190585-51-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 3-[4-(carboxymethyl)-4-diazo-3-oxobutyl]-3-methyl-1,5-dihydro-3H-2,4-benzodioxepin
• 英文别名: Methyl 2-diazo-5-(3-methyl-1,5-dihydro-2,4-benzodioxepin-3-yl)-3-oxopentanoate
• CAS: 190585-51-4
• 化学式: C₁₆H₁₈N₂O₅
• 分子量: 318.329
• InChiKey: PJIVOYRKFHXRIA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  23
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  63.8
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3-[4-(carboxymethyl)-4-diazo-3-oxobutyl]-3-methyl-1,5-dihydro-3H-2,4-benzodioxepin 在 六氟乙酰丙酮化铜的水合物 、 对甲苯磺酸 作用下， 生成 、
  参考文献：
  名称：

  Study of the Rearrangements of Oxonium Ylides Generated from Ketals

  摘要：

  Intramolecular exposure of cyclic ketals to metal carbenoids generates a proposed oxonium ylide intermediate that subsequently rearranges to one of three general products. The product resulting from a 1,2-shift to the ketal carbon is favored by larger ketals that lack radical stabilizing groups. A bridged bicyclic structure is formed by competitive 1,2-shift to the exocyclic carbon of the ketal and is favored by smaller ketal ring sizes that possess radical-stabilizing groups. An alternative beta-elimination pathway can also operate when neither of the 1,2-shift pathways are favored. The enol ether that is formed in this latter pathway rearranges easily to an isomeric dioxene.

  DOI：

  10.1021/jo961896m
• 作为产物：
  描述：

  乙酰丙酸甲酯 在 氢氧化钾 、 4-羧基苯磺叠氮 、 对甲苯磺酸 、 三乙胺 、 N,N'-羰基二咪唑 、 原甲酸三甲酯 作用下， 以 乙腈 、 苯 为溶剂， 反应 46.5h， 生成 3-[4-(carboxymethyl)-4-diazo-3-oxobutyl]-3-methyl-1,5-dihydro-3H-2,4-benzodioxepin
  参考文献：
  名称：

  Study of the Rearrangements of Oxonium Ylides Generated from Ketals

  摘要：

  Intramolecular exposure of cyclic ketals to metal carbenoids generates a proposed oxonium ylide intermediate that subsequently rearranges to one of three general products. The product resulting from a 1,2-shift to the ketal carbon is favored by larger ketals that lack radical stabilizing groups. A bridged bicyclic structure is formed by competitive 1,2-shift to the exocyclic carbon of the ketal and is favored by smaller ketal ring sizes that possess radical-stabilizing groups. An alternative beta-elimination pathway can also operate when neither of the 1,2-shift pathways are favored. The enol ether that is formed in this latter pathway rearranges easily to an isomeric dioxene.

  DOI：

  10.1021/jo961896m