2,6-diethyl-2'-methylbiphenyl | 1482498-12-3

• 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: 2,6-diethyl-2'-methylbiphenyl
• 英文别名: 1,3-Diethyl-2-(2-methylphenyl)benzene；1,3-diethyl-2-(2-methylphenyl)benzene
• CAS: 1482498-12-3
• 化学式: C₁₇H₂₀
• 分子量: 224.346
• InChiKey: SDFZHNWZLCZDQV-UHFFFAOYSA-N

物化性质

• 沸点：
  334.5±37.0 °C(Predicted)
• 密度：
  0.948±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  2,6-二乙基苯胺 在 盐酸 、 potassium phosphate monohydrate 、 4-溴苯甲酸乙酯 、 C₅₂H₄₉PRu 、 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 、 sodium nitrite 作用下， 以 1,4-二氧六环 、 乙醇 、 水 为溶剂， 反应 3.33h， 生成 2,6-diethyl-2'-methylbiphenyl
  参考文献：
  名称：

  An Active, General, and Long-Lived Palladium Catalyst for Cross-Couplings of Deactivated (Hetero)aryl Chlorides and Bromides with Arylboronic Acids

  摘要：

  An active, general, and long-lived palladium catalyst for Suzuki-Miyaura reactions of aryl and heteroaryl chlorides deactivated by steric hindrance, electron richness, and coordinating functional groups is reported. In reactions of arylbromide bearing two o-tert-butyl substituents, C(sp(3))-H arylation of the tert-butyl group, rather than the Suzuki-Miyaura reaction, proceeded in excellent yield. The key to the success of the reactions was the development of biphenylene-substituted dicyclohexylruthenocenylphosphine (CyR-Phos) as a supporting ligand.

  DOI：

  10.1021/jo402089r

文献信息

• NHC-Pd(II)-azole complexes catalyzed Suzuki–Miyaura cross-coupling of sterically hindered aryl chlorides with arylboronic acids
  作者：Yingying Zhang、Rong Zhang、Chang Ni、Xue Zhang、Yanji Li、Qingwen Lu、Yuxuan Zhao、Fangwai Han、Yongfei Zeng、Guiyan Liu

  DOI：10.1016/j.tetlet.2019.151541

  日期：2020.3

  hindered biaryls efficiently, a series of NHC-Pd(II)-azole complexes bearing sterically hindered ligands were synthesized and characterized. The steric environment effect as well as the electronic effect of the azole ligands has been assessed. All these complexes were applied in the Suzuki−Miyaura cross-coupling reaction of sterically hindered aryl chlorides with low catalysts loadings (0.1 mol %) under

  为了有效地合成受阻联芳基，合成并表征了一系列带有空间受阻配体的NHC-Pd（II）-唑配合物。已经评估了空间环境效应以及唑配体的电子效应。所有这些络合物均在空气中温和条件下，以低催化剂负载量（0.1摩尔％）用于空间受阻芳基氯的Suzuki-Miyaura交叉偶联反应中，并获得良好至优异的空间受阻联芳基分离产率。
• An Active, General, and Long-Lived Palladium Catalyst for Cross-Couplings of Deactivated (Hetero)aryl Chlorides and Bromides with Arylboronic Acids
  作者：Takashi Hoshi、Tomonobu Honma、Ayako Mori、Maki Konishi、Tsutomu Sato、Hisahiro Hagiwara、Toshio Suzuki

  DOI：10.1021/jo402089r

  日期：2013.11.15

  An active, general, and long-lived palladium catalyst for Suzuki-Miyaura reactions of aryl and heteroaryl chlorides deactivated by steric hindrance, electron richness, and coordinating functional groups is reported. In reactions of arylbromide bearing two o-tert-butyl substituents, C(sp(3))-H arylation of the tert-butyl group, rather than the Suzuki-Miyaura reaction, proceeded in excellent yield. The key to the success of the reactions was the development of biphenylene-substituted dicyclohexylruthenocenylphosphine (CyR-Phos) as a supporting ligand.