3-methyl-N-phenethylpyridin-2-amine | 1248499-09-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 3-methyl-N-phenethylpyridin-2-amine
• 英文别名: 3-methyl-N-(2-phenylethyl)-2-pyridineamine；3-methyl-N-(2-phenylethyl)pyridin-2-amine
• CAS: 1248499-09-3
• 化学式: C₁₄H₁₆N₂
• 分子量: 212.294
• InChiKey: KBQICZPYAJTIOX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  24.9
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  苯基硼酸1,3-丙二醇酯 、 3-methyl-N-phenethylpyridin-2-amine 在 十二羰基三钌 作用下， 以 频哪酮 为溶剂， 反应 36.0h， 以39%的产率得到N-(1,2-diphenylethyl)-3-methylpyridin-2-amine
  参考文献：
  名称：

  Ruthenium(0)-Catalyzed sp³ C–H Bond Arylation of Benzylic Amines Using Arylboronates

  摘要：

  A Ru-catalyzed direct arylation of benzylic sp(3) carbons of acyclic amines with arylboronates is reported. This highly regioselective and efficient transformation can be performed with various combinations of N-(2-pyridyl) substituted benzylamines and arylboronates. Substitution of the pyridine directing group in the 3-position proved to be crucial in order to achieve high arylation yields. Furthermore, the pyridine directing group can be removed in high yields via a two-step protocol.

  DOI：

  10.1021/ol300627p
• 作为产物：
  描述：

  2-氯-3-甲基吡啶 、 2-苯乙胺 在 palladium diacetate 、 potassium carbonate 、 R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下， 以 甲苯 为溶剂， 反应 16.0h， 以86%的产率得到3-methyl-N-phenethylpyridin-2-amine
  参考文献：
  名称：

  Ruthenium(0)-Catalyzed sp³ C–H Bond Arylation of Benzylic Amines Using Arylboronates

  摘要：

  A Ru-catalyzed direct arylation of benzylic sp(3) carbons of acyclic amines with arylboronates is reported. This highly regioselective and efficient transformation can be performed with various combinations of N-(2-pyridyl) substituted benzylamines and arylboronates. Substitution of the pyridine directing group in the 3-position proved to be crucial in order to achieve high arylation yields. Furthermore, the pyridine directing group can be removed in high yields via a two-step protocol.

  DOI：

  10.1021/ol300627p

文献信息

• Toluene and its Derivatives as Atom-Efficient Benzylating Agents for Secondary Amines
  作者：Michael Schnürch、David Schönbauer、Florian Lukas

  DOI：10.1055/s-0037-1610342

  日期：2019.1

  it is possible to activate toluene efficiently and use it directly for the benzylation of different 2-aminopyridines. The transformation is not restricted to simple toluene, but also substituted derivatives give the desired product in good yields. Effective cleavage of the pyridine moiety is presented.

  甲苯作为常见 N-苄基化试剂（如苄基溴）的替代品，可以成为一种原子效率高的替代试剂。在镍催化和温和的氧化条件下，可以有效地活化甲苯并将其直接用于不同2-氨基吡啶的苄基化反应。转化不仅限于简单的甲苯，而且取代的衍生物也能以良好的产率得到所需的产物。给出了吡啶部分的有效裂解。
• Mechanistic Investigations and Substrate Scope Evaluation of Ruthenium-Catalyzed Direct sp³ Arylation of Benzylic Positions Directed by 3-Substituted Pyridines
  作者：Navid Dastbaravardeh、Karl Kirchner、Michael Schnürch、Marko D. Mihovilovic

  DOI：10.1021/jo302547q

  日期：2013.1.18

  A highly efficient direct arylation process of benzylic amines with arylboronates was developed that employs Ru catalysis. The arylation takes place with greatest efficiency at the benzylic sp(3) carbon. If the distance to the activating aryl ring is increased, arylation is still possible but the yield drops significantly. Efficiency of the CH activation was found to be significantly increased by use of 3-substituted pyridines as directing groups, which can be removed after the transformation in high yield. Calculation of the energy profile of different rotamers of the substrate revealed that presence of a substituent in the 3-position favors a conformation with the CH2 group adopting a position in closer proximity to the directing group and facilitating C-H insertion. This operationally simple reaction can be carried out in argon atmosphere as well as in air and under neutral reaction conditions, displaying a remarkable functional group tolerance. Mechanistic studies were carried out and critically compared to mechanistic reports of related transformations.
• Ruthenium(0)-Catalyzed sp³ C–H Bond Arylation of Benzylic Amines Using Arylboronates
  作者：Navid Dastbaravardeh、Michael Schnürch、Marko D. Mihovilovic

  DOI：10.1021/ol300627p

  日期：2012.4.6

  A Ru-catalyzed direct arylation of benzylic sp(3) carbons of acyclic amines with arylboronates is reported. This highly regioselective and efficient transformation can be performed with various combinations of N-(2-pyridyl) substituted benzylamines and arylboronates. Substitution of the pyridine directing group in the 3-position proved to be crucial in order to achieve high arylation yields. Furthermore, the pyridine directing group can be removed in high yields via a two-step protocol.