N-(2-phenylpropan-2-yl)-2-(trimethylsilyl)benzamide | 249764-72-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: N-(2-phenylpropan-2-yl)-2-(trimethylsilyl)benzamide
• 英文别名: N-cumyl-2-(trimethylsilyl)benzamide；N-(2-phenylpropan-2-yl)-2-trimethylsilylbenzamide
• CAS: 249764-72-5
• 化学式: C₁₉H₂₅NOSi
• 分子量: 311.499
• InChiKey: QDOFHMRDSFXXPJ-UHFFFAOYSA-N

物化性质

• 沸点：
  441.2±38.0 °C(Predicted)
• 密度：
  1.02±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-(2-phenylpropan-2-yl)-2-(trimethylsilyl)benzamide 在 三氟化硼乙醚 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以86%的产率得到2-(trimethylsilyl)benzamide
  参考文献：
  名称：

  N-Cumyl Benzamide, Sulfonamide, and Aryl O-Carbamate Directed Metalation Groups. Mild Hydrolytic Lability for Facile Manipulation of Directed Ortho Metalation Derived Aromatics

  摘要：

  [GRAPHICS]N-Cumyl benzamide (2), sulfonamide (8), and O-carbamate (11) compounds undergo directed ortho metalation under standard conditions to give, after quench with a variety of electrophiles, the substituted products 3, 9, and 12, respectively. Regiospecific and convenient approaches to phthalimides (7), 1,2-benzisothiazole 1,1-dioxides (10b), and ortho-substituted phenols (13a) and salicylamides (13b) are thereby established. The mild deprotection protocol for these new cumyl directed metalation groups (DMGs) suggests that they will supersede previous corresponding groups for synthetic anionic aromatic chemistry.

  DOI：

  10.1021/ol990846b
• 作为产物：
  描述：

  2-苯基-2-丙醇 在 lithium aluminium tetrahydride 、 四甲基乙二胺 、 仲丁基锂 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 21.0h， 生成 N-(2-phenylpropan-2-yl)-2-(trimethylsilyl)benzamide
  参考文献：
  名称：

  N-Cumyl Benzamide, Sulfonamide, and Aryl O-Carbamate Directed Metalation Groups. Mild Hydrolytic Lability for Facile Manipulation of Directed Ortho Metalation Derived Aromatics

  摘要：

  [GRAPHICS]N-Cumyl benzamide (2), sulfonamide (8), and O-carbamate (11) compounds undergo directed ortho metalation under standard conditions to give, after quench with a variety of electrophiles, the substituted products 3, 9, and 12, respectively. Regiospecific and convenient approaches to phthalimides (7), 1,2-benzisothiazole 1,1-dioxides (10b), and ortho-substituted phenols (13a) and salicylamides (13b) are thereby established. The mild deprotection protocol for these new cumyl directed metalation groups (DMGs) suggests that they will supersede previous corresponding groups for synthetic anionic aromatic chemistry.

  DOI：

  10.1021/ol990846b

文献信息

• Directed <i>ortho</i> Metalation-Based Methodology. Halo-, Nitroso-, and Boro-Induced <i>ipso-</i>Desilylation. Link to an <i>in situ</i> Suzuki Reaction
  作者：Zhongdong Zhao、Victor Snieckus

  DOI：10.1021/ol0506563

  日期：2005.6.1

  [reaction: see text] Treatment of DoM-derived silylated aromatics 2-4 under standard electrophilic halogenation conditions cleanly affords ipso-desilyation products 5-7, while nitration of methoxy-substituted analogues 8, 9 leads to non-ipso isomers 10, 12 and 11, 13, controlled by a silicon steric effect. Sequential ipso-borodesilylation of 2a, 3a, and 20 followed by treatment with aryl halides under

  [反应：请参见文本]在标准的亲电子卤化条件下处理DoM衍生的甲硅烷基化芳族化合物2-4，可干净地获得ipso脱水产物5-7，而将甲氧基取代的类似物8、9硝化可生成非ipso异构体10、12和11、13受硅空间效应控制。2a，3a和20的顺序ipso-borodesilylation，然后在Pd催化条件下用芳基卤化物处理，构成了原位Suzuki-Miyaura交叉偶联方案，实现了联芳基和杂联芳基23。