ethyl 2-azido-2-(biphenyl-4-yl)acetate | 1221966-43-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: ethyl 2-azido-2-(biphenyl-4-yl)acetate
• 英文别名: ethyl 2-([1,1′-biphenyl]-4-yl)-2-azidoacetate
• CAS: 1221966-43-3
• 化学式: C₁₆H₁₅N₃O₂
• 分子量: 281.314
• InChiKey: VFWMYKMKJFBJPJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.27
• 重原子数：
  21.0
• 可旋转键数：
  5.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  75.06
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  ethyl 2-azido-2-(biphenyl-4-yl)acetate 在 氧气 、 copper diacetate 、 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 60.0 ℃ 、101.33 kPa 条件下， 反应 3.0h， 以93%的产率得到4-氰基联苯
  参考文献：
  名称：

  Generation of Iminyl Copper Species from α-Azido Carbonyl Compounds and Their Catalytic C−C Bond Cleavage under an Oxygen Atmosphere

  摘要：

  A copper-catalyzed reaction of a-azidocarbonyl compounds under an oxygen atmosphere is reported where nitriles are formed via C C bond cleavage of a transient Iminyl copper intermediate. The transformation is carried out by a sequence of denitrogenative formation of iminyl copper species from alpha-azidocarbonyl compounds and their C C bond cleavage, where molecular oxygen (1 atm) is a prerequisite to achieve the catalytic process and one of the oxygen atoms of O-2 was found to be incorporated Into the beta-carbon fragment as a carboxylic acid.

  DOI：

  10.1021/ol100522z
• 作为产物：
  描述：

  ethyl 2-(biphenyl-4-yl)-2-bromoacetate 在 sodium azide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 以97%的产率得到ethyl 2-azido-2-(biphenyl-4-yl)acetate
  参考文献：
  名称：

  Generation of Iminyl Copper Species from α-Azido Carbonyl Compounds and Their Catalytic C−C Bond Cleavage under an Oxygen Atmosphere

  摘要：

  A copper-catalyzed reaction of a-azidocarbonyl compounds under an oxygen atmosphere is reported where nitriles are formed via C C bond cleavage of a transient Iminyl copper intermediate. The transformation is carried out by a sequence of denitrogenative formation of iminyl copper species from alpha-azidocarbonyl compounds and their C C bond cleavage, where molecular oxygen (1 atm) is a prerequisite to achieve the catalytic process and one of the oxygen atoms of O-2 was found to be incorporated Into the beta-carbon fragment as a carboxylic acid.

  DOI：

  10.1021/ol100522z

文献信息

• Boron-Catalyzed Azide Insertion of α-Aryl α-Diazoesters
  作者：Htet Htet San、Chun-Ying Wang、Hai-Peng Zeng、Shi-Tao Fu、Min Jiang、Xiang-Ying Tang

  DOI：10.1021/acs.joc.8b03278

  日期：2019.4.5

  A challenging metal-free azide insertion of α-aryl α-diazoesters in the presence of B(C6F5)3 (5 mol %) was developed for the first time. The reaction features an easy operation, wide substrate scope, and mild conditions and affords the corresponding products in moderate to high yields. More importantly, alkene and alkyne functional groups were well tolerated because no cyclopropanation or cyclopropenation

  首次开发了在B（C 6 F 5）3（5 mol％）存在下具有挑战性的无金属的α-芳基α-重氮酸酯叠氮化物插入物。该反应具有易于操作，底物范围宽和条件温和的特点，并以中等至高收率提供了相应的产物。更重要的是，由于未观察到环丙烷化或环丙烷化，因此对烯烃和炔烃官能团的耐受性良好。此外，在简单转化后，相应的叠氮化物产物可以转化为伯胺或1,2,3-三唑衍生物。