2,3′,5′-trimethyl-1,1′-biphenyl | 76708-77-5

• 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: 2,3′,5′-trimethyl-1,1′-biphenyl
• 英文别名: 2’,3,5-trimethylbiphenyl；2,3',5'-trimethyl-1,1'-biphenyl；3,5-dimethyl-2'-methylbiphenyl；3,5,2'-trimethylbiphenyl；1,3-Dimethyl-5-(2-methylphenyl)benzene
• CAS: 76708-77-5
• 化学式: C₁₅H₁₆
• 分子量: 196.292
• InChiKey: YWWUASYXRFTAIH-UHFFFAOYSA-N

物化性质

• 沸点：
  280.7±25.0 °C(Predicted)
• 密度：
  0.964±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 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-氯甲苯 、 3,5-二甲基苯硼酸 在 potassium phosphate 、 C₄₆H₅₂Cl₃N₃O₂Pd 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 4.0h， 以97%的产率得到2,3′,5′-trimethyl-1,1′-biphenyl
  参考文献：
  名称：

  N-杂碳烯钯配合物与二苯甲醚骨架：合成，结构和催化。

  摘要：

  已合成并表征了一系列钯N-杂环卡宾（NHC），配合物C1 - C5，带有二苯甲醚骨架和取代的N-芳基部分。已经评估了NHC配体的电子效应以及空间环境。合成的钯配合物用于有氧条件下的Suzuki-Miyaura交叉偶联反应。然后广泛研究了催化结构和催化性能之间的关系。通过优化反应条件，发现C4在钯含量为0.1 mol％的情况下催化（杂）芳基氯化物与（杂）芳基硼酸的交叉偶联反应非常高效。

  DOI：

  10.1021/acs.organomet.9b00230

文献信息

• A Highly Active and General Catalyst for the Stille Coupling Reaction of Unreactive Aryl, Heteroaryl, and Vinyl Chlorides under Mild Conditions
  作者：Dong-Hwan Lee、Yingjie Qian、Ji-Hoon Park、Jong-Suk Lee、Sang-Eun Shim、Myung-Jong Jin

  DOI：10.1002/adsc.201300075

  日期：2013.6.17

  efficient and general catalyst in the Stille coupling reaction of various aryl and heteroaryl chlorides with organostannanes. The results show that this catalytic system allows for the use of less reactive substrates such as deactivated or sterically hindered aryl chlorides. A catalyst loading of 0.5 mol% was sufficient to achieve excellent performance under relatively mild reaction conditions. Furthermore

  在各种芳基和杂芳基氯化物与有机锡的斯蒂尔偶联反应中，发现β-二酮亚氨基膦膦-钯配合物可作为一种有效的通用催化剂。结果表明，该催化体系允许使用反应性较低的底物，例如失活或空间受阻的芳基氯化物。0.5mol％的催化剂负载量足以在相对温和的反应条件下获得优异的性能。此外，催化剂的范围扩展到氯乙烯的偶联。
• Palladium-Catalyzed Cross-Coupling of Aryl Halides Using Organotitanium Nucleophiles
  作者：Hang Wai Lee、Fuk Loi Lam、Chau Ming So、Chak Po Lau、Albert S. C. Chan、Fuk Yee Kwong

  DOI：10.1002/anie.200904033

  日期：2009.9.21

  couple: Catalysts generated from Pd(OAc)2 and indolylphosphine ligands are highly effective in the titanium‐mediated coupling of aryl halides. Catalyst loadings as low as 0.05 mol % Pd can be used. The mild reaction conditions also allow the coupling of aryl sulfonyl chlorides with aryl titanium reagents to generate diaryl sulfones.

  它们构成了很好的一对：由Pd（OAc）2和吲哚基膦配体生成的催化剂在钛介导的芳基卤化物偶联中非常有效。可以使用低至0.05 mol％Pd的催化剂负载量。温和的反应条件还使芳基磺酰氯与芳基钛试剂偶合生成二芳基砜。
• General and highly active catalyst for mono and double Hiyama coupling reactions of unreactive aryl chlorides in water
  作者：Dong-Hwan Lee、Ji-Young Jung、Myung-Jong Jin

  DOI：10.1039/c0cc03535a

  日期：——

  A new beta-diketiminatophosphane Pd catalyst was found to be highly effective in the mono and double Hiyama coupling reactions of unactivated aryl chlorides in water.

  发现一种新的β-二酮基亚氨基膦Pd催化剂在水中未活化的芳基氯化物的单和双Hiyama偶联反应中非常有效。
• An Extremely Active and General Catalyst for Suzuki Coupling Reaction of Unreactive Aryl Chlorides
  作者：Dong-Hwan Lee、Myung-Jong Jin

  DOI：10.1021/ol102677r

  日期：2011.1.21

  2a acted as a powerful catalyst which allows easy access to the Suzuki coupling reaction of less reactive aryl chlorides under mild conditions. A wide range of sterically hindered and deactivated aryl chlorides could be efficiently coupled at a low catalyst loading of 0.1 mol %. Furthermore, this catalytic system also proved to be highly effective in one-pot multiple couplings.

  β-二酮亚氨基膦Pd络合物2a用作强力催化剂，可在温和条件下轻松进入反应性较低的芳基氯化物的Suzuki偶联反应。可以在0.1 mol％的低催化剂负载量下有效地偶联各种空间受阻和失活的芳基氯化物。此外，该催化体系在一锅多联中也被证明是非常有效的。
• Novel monoligated imine–Pd–NHC complexes: extremely active pre-catalysts for Suzuki–Miyaura coupling of aryl chlorides
  作者：An Shen、Chen Ni、Yu-Cai Cao、Hui Zhou、Gong-Hua Song、Xiao-Feng Ye

  DOI：10.1016/j.tetlet.2014.04.044

  日期：2014.5

  Novel monoligated imine-Pd-NHC pre-catalysts with extremely high activity for the coupling of aryl chlorides and aryl boronic acids have been well explored. Three diffident catalysts could be obtained through one reaction. Changes in imine ligands would lead to remarkable variation on catalytic activity. Under mild reaction conditions, high reaction yields were achieved. A wide range of biphenyls could be efficiently obtained at ultra low catalyst loadings of 0.005 mol %. (C) 2014 Elsevier Ltd. All rights reserved.