<γ-(trimethylsilyl)butyryl>p-cyanophenone | 153489-21-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: <γ-(trimethylsilyl)butyryl>p-cyanophenone
• 英文别名: 4-(4-Trimethylsilylbutanoyl)benzonitrile
• CAS: 153489-21-5
• 化学式: C₁₄H₁₉NOSi
• 分子量: 245.396
• InChiKey: NKKQHYUGSDLLEY-UHFFFAOYSA-N

物化性质

• 沸点：
  360.9±27.0 °C(Predicted)
• 密度：
  0.99±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.86
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  40.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  <γ-(trimethylsilyl)butyryl>p-cyanophenone 以 氘代乙腈 为溶剂， 反应 0.33h， 以7%的产率得到1-(4-cyanophenyl)-2-(trimethylsilyl)-1-cyclobutanol
  参考文献：
  名称：

  Exploratory Studies of H-Atom Abstraction and Silyl-Transfer Photoreactions of Silylalkyl Ketones and (Silylalkyl)phthalimides

  摘要：

  Exploratory studies have been conducted to probe competitive H-atom abstraction and SET-promoted, silyl-transfer reactions of excited states of silylalkyl ketones and (silylalkyl)phthalimides. Photochemical investigations with the (silylalkyl)phthalimides have demonstrated that typical gamma-H atom abstraction reactions occur upon irradiation in less polar and less silophilic solvents. In contrast, irradiation of these substances in polar-protic-silophilic solvents results in product formation via pathways involving SET-induced desilylation. Photoreactions of silylamido-aryl ketones in either nonsilophilic or silophilic solvents take place almost exclusively by sequential SET silyl-transfer routes to produce azetidine products. Finally, the chemical selectivities of photochemical reactions of silylpropyl-aryl ketones appear to depend on medium polarity and silophilicity. Irradiation of these substrates in less polar-nonsilophilic solvents leads to almost exclusive formation of acetophenone and vinyltrimethylsilane in essentially equal yields by a reaction pathway initiated by gamma-H atom abstraction and 1,4-biradical fragmentation. However, irradiation of these substances in polar-silophilic solvents produces acetophenone and vinyltrimethylsilane in an ca. 1.7:1 ratio reflecting the fact that a silyl-transfer pathway competes with H-atom abstraction under these conditions.

  DOI：

  10.1021/jo9522623
• 作为产物：
  描述：

  对氰基苯甲酸 在 氯化亚砜 作用下， 以 四氢呋喃 为溶剂， 反应 5.5h， 生成 <γ-(trimethylsilyl)butyryl>p-cyanophenone
  参考文献：
  名称：

  Exploratory Studies of H-Atom Abstraction and Silyl-Transfer Photoreactions of Silylalkyl Ketones and (Silylalkyl)phthalimides

  摘要：

  Exploratory studies have been conducted to probe competitive H-atom abstraction and SET-promoted, silyl-transfer reactions of excited states of silylalkyl ketones and (silylalkyl)phthalimides. Photochemical investigations with the (silylalkyl)phthalimides have demonstrated that typical gamma-H atom abstraction reactions occur upon irradiation in less polar and less silophilic solvents. In contrast, irradiation of these substances in polar-protic-silophilic solvents results in product formation via pathways involving SET-induced desilylation. Photoreactions of silylamido-aryl ketones in either nonsilophilic or silophilic solvents take place almost exclusively by sequential SET silyl-transfer routes to produce azetidine products. Finally, the chemical selectivities of photochemical reactions of silylpropyl-aryl ketones appear to depend on medium polarity and silophilicity. Irradiation of these substrates in less polar-nonsilophilic solvents leads to almost exclusive formation of acetophenone and vinyltrimethylsilane in essentially equal yields by a reaction pathway initiated by gamma-H atom abstraction and 1,4-biradical fragmentation. However, irradiation of these substances in polar-silophilic solvents produces acetophenone and vinyltrimethylsilane in an ca. 1.7:1 ratio reflecting the fact that a silyl-transfer pathway competes with H-atom abstraction under these conditions.

  DOI：

  10.1021/jo9522623

文献信息

• The operation of H-atom and TMS-group transfer processes in the photochemistry of silylamidoalkyl- and silylalkyl-ketones and -phthalimides
  作者：Yean Jang Lee、Chao Pin Lee、Yoon Tag Jeon、Patrick S. Mariano、Ung Chan Yoon、Dong Uk Kim、Jack C. Kim、Jong Gun Lee

  DOI：10.1016/s0040-4039(00)73797-x

  日期：1993.9
• Exploratory Studies of H-Atom Abstraction and Silyl-Transfer Photoreactions of Silylalkyl Ketones and (Silylalkyl)phthalimides
  作者：Yean Jang Lee、Rong Ling、Patrick S. Mariano、Ung Chan Yoon、Dong Uk Kim、Sun Wha Oh

  DOI：10.1021/jo9522623

  日期：1996.1.1

  Exploratory studies have been conducted to probe competitive H-atom abstraction and SET-promoted, silyl-transfer reactions of excited states of silylalkyl ketones and (silylalkyl)phthalimides. Photochemical investigations with the (silylalkyl)phthalimides have demonstrated that typical gamma-H atom abstraction reactions occur upon irradiation in less polar and less silophilic solvents. In contrast, irradiation of these substances in polar-protic-silophilic solvents results in product formation via pathways involving SET-induced desilylation. Photoreactions of silylamido-aryl ketones in either nonsilophilic or silophilic solvents take place almost exclusively by sequential SET silyl-transfer routes to produce azetidine products. Finally, the chemical selectivities of photochemical reactions of silylpropyl-aryl ketones appear to depend on medium polarity and silophilicity. Irradiation of these substrates in less polar-nonsilophilic solvents leads to almost exclusive formation of acetophenone and vinyltrimethylsilane in essentially equal yields by a reaction pathway initiated by gamma-H atom abstraction and 1,4-biradical fragmentation. However, irradiation of these substances in polar-silophilic solvents produces acetophenone and vinyltrimethylsilane in an ca. 1.7:1 ratio reflecting the fact that a silyl-transfer pathway competes with H-atom abstraction under these conditions.