[2,3,3-Trimethyl-cyclopent-(E)-ylidene]-acetaldehyde | 143611-90-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: [2,3,3-Trimethyl-cyclopent-(E)-ylidene]-acetaldehyde
• 英文别名: (2,3,3-Trimethylcyclopentylidene)acetaldehyde；2-(2,3,3-trimethylcyclopentylidene)acetaldehyde
• CAS: 143611-90-9
• 化学式: C₁₀H₁₆O
• 分子量: 152.236
• InChiKey: GUHDZPCFWHRDJU-UHFFFAOYSA-N

物化性质

• 沸点：
  216.5±9.0 °C(Predicted)
• 密度：
  0.941±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  樟脑 在 过氧乙酸 、 lithium aluminium tetrahydride 、 Luft 、 Silber auf Korund 、 硫酸 、 sodium acetate 作用下， 以 乙醚 为溶剂， 反应 38.0h， 生成 [2,3,3-Trimethyl-cyclopent-(E)-ylidene]-acetaldehyde
  参考文献：
  名称：

  Synthese und Reaktionen von ?-Campholenverbindungen

  摘要：

  In contrast to the well known alpha-campholenic (B) and fencholenic compounds (C) little is known about beta-campholenic derivatives (A) because of their difficult accessibilitiy. Beta-campholenic compounds (A) can be obtained: (1) by Baeyer-Villiger oxidation of camphor via lactone 7 and beta-dihydrocampholenic lactone (5); (2) by Beckmann fragmentation of camphor oxime via alpha-(2) and beta-campholenic nitril (3) and the lactone 5; and (3) by acid catalysed rearrangement of alpha-campholenic derivatives (B, 17a, b). The beta-analogous brahmanol (14) can be synthesized by the reaction of the beta-campholenic bromide (11) with methyl diethyl malonate or by rearrangement of brahmanol.

  DOI：

  10.1002/prac.19933350607

文献信息

• Synthese und Reaktionen von ?-Campholenverbindungen
  作者：K. Schulze、K. Wy�uwa、H. Trauer、A.-K. Habermann

  DOI：10.1002/prac.19933350607

  日期：——

  In contrast to the well known alpha-campholenic (B) and fencholenic compounds (C) little is known about beta-campholenic derivatives (A) because of their difficult accessibilitiy. Beta-campholenic compounds (A) can be obtained: (1) by Baeyer-Villiger oxidation of camphor via lactone 7 and beta-dihydrocampholenic lactone (5); (2) by Beckmann fragmentation of camphor oxime via alpha-(2) and beta-campholenic nitril (3) and the lactone 5; and (3) by acid catalysed rearrangement of alpha-campholenic derivatives (B, 17a, b). The beta-analogous brahmanol (14) can be synthesized by the reaction of the beta-campholenic bromide (11) with methyl diethyl malonate or by rearrangement of brahmanol.