2-phenyl-3,5-di-n-butyl-2,5-cyclohexadiene-1,4-dione | 144790-98-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-phenyl-3,5-di-n-butyl-2,5-cyclohexadiene-1,4-dione
• 英文别名: 3,5-Dibutyl-2-phenylcyclohexa-2,5-diene-1,4-dione
• CAS: 144790-98-7
• 化学式: C₂₀H₂₄O₂
• 分子量: 296.409
• InChiKey: XSZPFVUWFUZBTG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  22
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-Butyl-4-hex-1-ynyl-4-hydroxy-3-phenyl-cyclobut-2-enone 以 苯 为溶剂， 生成 2-phenyl-3,5-di-n-butyl-2,5-cyclohexadiene-1,4-dione
  参考文献：
  名称：

  A potentially general regiospecific synthesis of substituted quinones from dimethyl squarate

  摘要：

  A potentially general regiospecific synthesis of benzo- and naphthoquinones is described. This method starts with dimethyl squarate (1), which is converted to the cyclobutenone ketal 3 upon sequential treatment with an organolithium reagent and then BF3 etherate or TFAA in THF/methanol. Treatment of these with a second lithium reagent followed by hydrolysis gives the cyclobutenones 5. Addition of an alkynyl-, alkenyl- or aryllithium agent to 5 followed by hydrolysis of the ketal linkage gives the corresponding 4-alkynyl- 4-alkenyl- or 4-aryl-4-hydroxycyclobutenones 7-9, and these readily rearrange to the respective quinones or hydroquinones upon thermolysis in refluxing benzene. In a similar fashion, 15 was employed as a reagent to prepare mono- and disubstituted hydroquinones and quinones.

  DOI：

  10.1021/jo00051a040

文献信息

• A potentially general regiospecific synthesis of substituted quinones from dimethyl squarate
  作者：Leah M. Gayo、Michael P. Winters、Harold W. Moore

  DOI：10.1021/jo00051a040

  日期：1992.12

  A potentially general regiospecific synthesis of benzo- and naphthoquinones is described. This method starts with dimethyl squarate (1), which is converted to the cyclobutenone ketal 3 upon sequential treatment with an organolithium reagent and then BF3 etherate or TFAA in THF/methanol. Treatment of these with a second lithium reagent followed by hydrolysis gives the cyclobutenones 5. Addition of an alkynyl-, alkenyl- or aryllithium agent to 5 followed by hydrolysis of the ketal linkage gives the corresponding 4-alkynyl- 4-alkenyl- or 4-aryl-4-hydroxycyclobutenones 7-9, and these readily rearrange to the respective quinones or hydroquinones upon thermolysis in refluxing benzene. In a similar fashion, 15 was employed as a reagent to prepare mono- and disubstituted hydroquinones and quinones.